#1F4979#1F4979

#1F4979 is a dark, moderate cyan. Relative luminance 0.064; OKLCH L 40.1% C 0.094 H 253.7°. Best body text is #FFFFFF at 9.18:1 contrast (WCAG AA passes).

Color values

HEX	#1F4979
RGB	rgb(31, 73, 121)
HSL	hsl(212, 59%, 30%)
HSV	hsv(212, 74%, 47%)
CMYK	cmyk(74.4%, 39.7%, 0%, 52.5%)
CIE-LAB	lab(30.49, 3.01, -31.59)
CIE-LCH	lch(30.49, 31.74, 275.45°)
OKLab	oklab(40.12% -0.0263 -0.09)
OKLCH	oklch(40.12% 0.094 253.7)
XYZ	xyz(6.3975, 6.4362, 18.9906)
Luminance	0.0644 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4979 #794F1F

analogous

#1F7679 #1F4979 #221F79

triadic

#1F4979 #791F49 #49791F

tetradic

#1F4979 #791F76 #794F1F #1F7922

square

#1F4979 #791F76 #794F1F #1F7922

split-complementary

#1F4979 #79221F #76791F

monochromatic

#060F18 #132C48 #1F4979 #2B66AA #4385CF

Accessibility & contrast

On white

9.18

#1F4979 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#1F4979 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4979

9.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4979	#FFFFFF	#000000	##FFFFFF
##1F4979	1.00	9.18	2.29	9.18
#FFFFFF	9.18	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#334C7B

Deuteranopia (green-blind)

#254478

Tritanopia (blue-blind)

#00545B

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #1f4979;
/* rgb */ color: rgb(31, 73, 121);
/* oklch */ color: oklch(40.1% 0.094 253.7);

Tailwind

colors: {
  custom: {
    50: '#677ba0',
    500: '#1f4979',
    950: '#000000',
  },
}

SCSS

$custom: #1f4979;
$custom-light: #677ba0;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4979",
  "rgb": {
    "r": 31,
    "g": 73,
    "b": 121
  },
  "hsl": {
    "h": 212,
    "s": 59.211,
    "l": 29.804
  },
  "oklch": {
    "l": 0.40122,
    "c": 0.09375,
    "h": 253.7
  },
  "luminance": 0.06437
}

Semantic roles & 50–950 ramp

primary

#1F4979

secondary

#AC7D47

accent

#9945E2

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#07090E

muted

#7A7B7E

Preview Lab

Preview with #1F4979

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

Preview Lab → · Contrast checker → · Palette generator →