#1F588E#1F588E

#1F588E is a mid, moderate cyan. Relative luminance 0.092; OKLCH L 45.1% C 0.106 H 250.5°. Best body text is #FFFFFF at 7.38:1 contrast (WCAG AA passes).

Color values

HEX	#1F588E
RGB	rgb(31, 88, 142)
HSL	hsl(209, 64%, 34%)
HSV	hsv(209, 78%, 56%)
CMYK	cmyk(78.2%, 38%, 0%, 44.3%)
CIE-LAB	lab(36.41, 1.45, -35.13)
CIE-LCH	lch(36.41, 35.16, 272.36°)
OKLab	oklab(45.15% -0.0355 -0.1001)
OKLCH	oklch(45.15% 0.106 250.5)
XYZ	xyz(8.9354, 9.2227, 26.8952)
Luminance	0.0922 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F588E #8E551F

analogous

#1F8E8D #1F588E #1F218E

triadic

#1F588E #8E1F58 #588E1F

tetradic

#1F588E #8D1F8E #8E551F #218E1F

square

#1F588E #8D1F8E #8E551F #218E1F

split-complementary

#1F588E #8E1F21 #8E8D1F

monochromatic

#091A2A #14395C #1F588E #2A77C0 #4F96D9

Accessibility & contrast

On white

7.38

#1F588E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.84

#1F588E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F588E

7.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F588E	#FFFFFF	#000000	##FFFFFF
##1F588E	1.00	7.38	2.84	7.38
#FFFFFF	7.38	1.00	21.00	1.00
#000000	2.84	21.00	1.00	21.00
##FFFFFF	7.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F5B90

Deuteranopia (green-blind)

#2E518D

Tritanopia (blue-blind)

#00656C

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #1f588e;
/* rgb */ color: rgb(31, 88, 142);
/* oklch */ color: oklch(45.1% 0.106 250.5);

Tailwind

colors: {
  custom: {
    50: '#6c86af',
    500: '#1f588e',
    950: '#000000',
  },
}

SCSS

$custom: #1f588e;
$custom-light: #6c86af;
$custom-dark: #000000;

JSON

{
  "hex": "#1f588e",
  "rgb": {
    "r": 31,
    "g": 88,
    "b": 142
  },
  "hsl": {
    "h": 209.189,
    "s": 64.162,
    "l": 33.922
  },
  "oklch": {
    "l": 0.4515,
    "c": 0.10619,
    "h": 250.5
  },
  "luminance": 0.09224
}

Semantic roles & 50–950 ramp

primary

#1F588E

secondary

#BB834D

accent

#9241E7

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#080B10

muted

#7A7C7F

Preview Lab

Preview with #1F588E

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

Preview Lab → · Contrast checker → · Palette generator →