#90a5bb

Color #90a5bb

A muted light blue.

Closest named color Light Slate Gray #778899 · ΔE 11.23 Nearest Tailwind class slate-400 #90a1b9 · ΔE 2.3

Open in Palette generator Color wheel Color mixer Contrast checker Blindness simulator Gradient

Conversions

HEX

#90a5bb

RGB

rgb(144, 165, 187)

HSL

hsl(210.7, 24%, 64.9%)

HSV / HSB

hsv(210.7, 23%, 73.3%)

CMYK

cmyk(23%, 11.8%, 0%, 26.7%)

LAB

lab(66.84, -2.42, -13.74)

LCH

lch(66.84, 13.95, 260.01)

OKLCH

oklch(71.3%, 0.0399, 249.61)

HWB

hwb(210.7, 56.5%, 26.7%)

Harmony colors

Complementary

#bba690

Analogous

#90babb

#90a5bb

#9190bb

Triadic

#90a5bb

#bb90a5

#a5bb90

Split-complementary

#90a5bb

#bb9190

#babb90

Tetradic

#90a5bb

#a690bb

#bba690

#a5bb90

Square

#90a5bb

#bb90ba

#bba690

#90bb91

Shades

Color #90a5bb mixed toward black.

#6e89a6

#546e89

#3f5267

#2a3744

#151b22

Tints

Color #90a5bb mixed toward white.

#a3b4c6

#b5c3d2

#c8d2dd

#dae1e8

#edf0f4

Tones

Color #90a5bb mixed toward gray.

#94a5b7

#97a5b4

#9ba5b0

#9ea5ad

#a2a5a9

Accessibility

Aa White text on this color

2.53:1

Aa Black text on this color

8.29:1

Black text reads better on this background (8.29:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#9a9ab6 · ΔE 10.3

Deuteranopia

#9897b5 · ΔE 11.1

Tritanopia

#91b2b1 · ΔE 12.7

Achromatopsia

#a3a3a3 · ΔE 10.8

Left half is the original, right half is the simulated appearance. See all 8 vision types →

Code

CSS

background-color: #90a5bb;

Tailwind (arbitrary value)

bg-[#90a5bb]

Related colors

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Alice Blue #f0f8ff

Light Steel Blue #b0c4de

Steel Blue #4682b4

Frequently asked questions

#90a5bb (#90a5bb) is rgb(144, 165, 187) in RGB.

No, #90a5bb is not one of the 216 web-safe colors — for that, every RGB channel would have to be a multiple of 51.

Related tools

Colors

HEX to RGB Converter

Convert any HEX color code to its RGB and HSL equivalents, live, with copy-to-clipboard values.

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Contrast Checker

Check the WCAG contrast ratio between any two colors, live, with AA/AAA pass-fail results.

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Palette Generator

Generate complementary, analogous, triadic, split-complementary, tetradic, square, and monochromatic palettes from any base color.

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Build something with this color

Generate a full palette from #90a5bb, or check how it holds up for accessibility.

Generate a palette → Check contrast