#1D376F#1D376F

#1D376F is a dark, moderate blue. Relative luminance 0.041; OKLCH L 35.0% C 0.102 H 263.3°. Best body text is #FFFFFF at 11.49:1 contrast (WCAG AA passes).

Color values

HEX	#1D376F
RGB	rgb(29, 55, 111)
HSL	hsl(221, 59%, 27%)
HSV	hsv(221, 74%, 44%)
CMYK	cmyk(73.9%, 50.5%, 0%, 56.5%)
CIE-LAB	lab(24.13, 11.08, -35.43)
CIE-LCH	lch(24.13, 37.12, 287.36°)
OKLab	oklab(34.97% -0.0119 -0.1016)
OKLCH	oklch(34.97% 0.102 263.3)
XYZ	xyz(4.7411, 4.1408, 15.5852)
Luminance	0.0414 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D376F #6F551D

analogous

#1D606F #1D376F #2C1D6F

triadic

#1D376F #6F1D37 #376F1D

tetradic

#1D376F #6F1D60 #6F551D #1D6F2C

square

#1D376F #6F1D60 #6F551D #1D6F2C

split-complementary

#1D376F #6F2C1D #606F1D

monochromatic

#060C18 #101F3E #1D376F #2A4FA0 #3B69CC

Accessibility & contrast

On white

11.49

#1D376F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#1D376F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D376F

11.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D376F	#FFFFFF	#000000	##FFFFFF
##1D376F	1.00	11.49	1.83	11.49
#FFFFFF	11.49	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#193D71

Deuteranopia (green-blind)

#04366E

Tritanopia (blue-blind)

#00444D

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1d376f;
/* rgb */ color: rgb(29, 55, 111);
/* oklch */ color: oklch(35.0% 0.102 263.3);

Tailwind

colors: {
  custom: {
    50: '#646d99',
    500: '#1d376f',
    950: '#000000',
  },
}

SCSS

$custom: #1d376f;
$custom-light: #646d99;
$custom-dark: #000000;

JSON

{
  "hex": "#1d376f",
  "rgb": {
    "r": 29,
    "g": 55,
    "b": 111
  },
  "hsl": {
    "h": 220.976,
    "s": 58.571,
    "l": 27.451
  },
  "oklch": {
    "l": 0.34974,
    "c": 0.10229,
    "h": 263.3
  },
  "luminance": 0.04141
}

Semantic roles & 50–950 ramp

primary

#1D376F

secondary

#A38544

accent

#B046E2

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #1D376F

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

Preview Lab → · Contrast checker → · Palette generator →