#1F376E#1F376E

#1F376E is a dark, moderate blue. Relative luminance 0.041; OKLCH L 35.0% C 0.100 H 264.2°. Best body text is #FFFFFF at 11.48:1 contrast (WCAG AA passes).

Color values

HEX	#1F376E
RGB	rgb(31, 55, 110)
HSL	hsl(222, 56%, 28%)
HSV	hsv(222, 72%, 43%)
CMYK	cmyk(71.8%, 50%, 0%, 56.9%)
CIE-LAB	lab(24.16, 11.01, -34.74)
CIE-LCH	lch(24.16, 36.44, 287.58°)
OKLab	oklab(35% -0.0102 -0.0995)
OKLCH	oklch(35% 0.1 264.2)
XYZ	xyz(4.7447, 4.1490, 15.2996)
Luminance	0.0415 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F376E #6E561F

analogous

#1F5E6E #1F376E #2E1F6E

triadic

#1F376E #6E1F37 #376E1F

tetradic

#1F376E #6E1F5E #6E561F #1F6E2E

square

#1F376E #6E1F5E #6E561F #1F6E2E

split-complementary

#1F376E #6E2E1F #5E6E1F

monochromatic

#070C18 #121F3E #1F376E #2C4F9E #3F69C9

Accessibility & contrast

On white

11.48

#1F376E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#1F376E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F376E

11.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F376E	#FFFFFF	#000000	##FFFFFF
##1F376E	1.00	11.48	1.83	11.48
#FFFFFF	11.48	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A3D70

Deuteranopia (green-blind)

#08366D

Tritanopia (blue-blind)

#00444D

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1f376e;
/* rgb */ color: rgb(31, 55, 110);
/* oklch */ color: oklch(35.0% 0.100 264.2);

Tailwind

colors: {
  custom: {
    50: '#656d98',
    500: '#1f376e',
    950: '#000000',
  },
}

SCSS

$custom: #1f376e;
$custom-light: #656d98;
$custom-dark: #000000;

JSON

{
  "hex": "#1f376e",
  "rgb": {
    "r": 31,
    "g": 55,
    "b": 110
  },
  "hsl": {
    "h": 221.772,
    "s": 56.028,
    "l": 27.647
  },
  "oklch": {
    "l": 0.34998,
    "c": 0.10006,
    "h": 264.2
  },
  "luminance": 0.04149
}

Semantic roles & 50–950 ramp

primary

#1F376E

secondary

#A28647

accent

#B148DF

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #1F376E

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

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