#1D376E#1D376E

#1D376E is a dark, moderate blue. Relative luminance 0.041; OKLCH L 34.9% C 0.101 H 263.1°. Best body text is #FFFFFF at 11.51:1 contrast (WCAG AA passes).

Color values

HEX	#1D376E
RGB	rgb(29, 55, 110)
HSL	hsl(221, 58%, 27%)
HSV	hsv(221, 74%, 43%)
CMYK	cmyk(73.6%, 50%, 0%, 56.9%)
CIE-LAB	lab(24.06, 10.67, -34.90)
CIE-LCH	lch(24.06, 36.50, 287.00°)
OKLab	oklab(34.9% -0.012 -0.1)
OKLCH	oklch(34.9% 0.101 263.1)
XYZ	xyz(4.6864, 4.1189, 15.2969)
Luminance	0.0412 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D376E #6E541D

analogous

#1D5F6E #1D376E #2C1D6E

triadic

#1D376E #6E1D37 #376E1D

tetradic

#1D376E #6E1D5F #6E541D #1D6E2C

square

#1D376E #6E1D5F #6E541D #1D6E2C

split-complementary

#1D376E #6E2C1D #5F6E1D

monochromatic

#060C18 #101F3E #1D376E #2A4F9E #3A69CB

Accessibility & contrast

On white

11.51

#1D376E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#1D376E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D376E

11.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D376E	#FFFFFF	#000000	##FFFFFF
##1D376E	1.00	11.51	1.82	11.51
#FFFFFF	11.51	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A3D70

Deuteranopia (green-blind)

#06366D

Tritanopia (blue-blind)

#00444D

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1d376e;
/* rgb */ color: rgb(29, 55, 110);
/* oklch */ color: oklch(34.9% 0.101 263.1);

Tailwind

colors: {
  custom: {
    50: '#646d98',
    500: '#1d376e',
    950: '#000000',
  },
}

SCSS

$custom: #1d376e;
$custom-light: #646d98;
$custom-dark: #000000;

JSON

{
  "hex": "#1d376e",
  "rgb": {
    "r": 29,
    "g": 55,
    "b": 110
  },
  "hsl": {
    "h": 220.741,
    "s": 58.273,
    "l": 27.255
  },
  "oklch": {
    "l": 0.34897,
    "c": 0.10077,
    "h": 263.1
  },
  "luminance": 0.04119
}

Semantic roles & 50–950 ramp

primary

#1D376E

secondary

#A28444

accent

#B046E1

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #1D376E

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

Preview Lab → · Contrast checker → · Palette generator →