#1F5588#1F5588

#1F5588 is a dark, moderate cyan. Relative luminance 0.086; OKLCH L 44.0% C 0.101 H 250.2°. Best body text is #FFFFFF at 7.74:1 contrast (WCAG AA passes).

Color values

HEX	#1F5588
RGB	rgb(31, 85, 136)
HSL	hsl(209, 63%, 33%)
HSV	hsv(209, 77%, 53%)
CMYK	cmyk(77.2%, 37.5%, 0%, 46.7%)
CIE-LAB	lab(35.13, 1.03, -33.50)
CIE-LCH	lch(35.13, 33.51, 271.77°)
OKLab	oklab(44.04% -0.0343 -0.0954)
OKLCH	oklch(44.04% 0.101 250.2)
XYZ	xyz(8.2558, 8.5649, 24.5059)
Luminance	0.0857 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F5588 #88521F

analogous

#1F8886 #1F5588 #1F2088

triadic

#1F5588 #881F55 #55881F

tetradic

#1F5588 #861F88 #88521F #20881F

square

#1F5588 #861F88 #88521F #20881F

split-complementary

#1F5588 #881F20 #88861F

monochromatic

#081724 #143656 #1F5588 #2A74BA #4B93D6

Accessibility & contrast

On white

7.74

#1F5588 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#1F5588 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F5588

7.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F5588	#FFFFFF	#000000	##FFFFFF
##1F5588	1.00	7.74	2.71	7.74
#FFFFFF	7.74	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D588A

Deuteranopia (green-blind)

#2E4E87

Tritanopia (blue-blind)

#006168

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #1f5588;
/* rgb */ color: rgb(31, 85, 136);
/* oklch */ color: oklch(44.0% 0.101 250.2);

Tailwind

colors: {
  custom: {
    50: '#6a84ab',
    500: '#1f5588',
    950: '#000000',
  },
}

SCSS

$custom: #1f5588;
$custom-light: #6a84ab;
$custom-dark: #000000;

JSON

{
  "hex": "#1f5588",
  "rgb": {
    "r": 31,
    "g": 85,
    "b": 136
  },
  "hsl": {
    "h": 209.143,
    "s": 62.874,
    "l": 32.745
  },
  "oklch": {
    "l": 0.44039,
    "c": 0.10133,
    "h": 250.2
  },
  "luminance": 0.08566
}

Semantic roles & 50–950 ramp

primary

#1F5588

secondary

#B9804A

accent

#9242E6

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#070A10

muted

#7A7C7F

Preview Lab

Preview with #1F5588

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →