#1D3271#1D3271

#1D3271 is a dark, moderate blue. Relative luminance 0.037; OKLCH L 34.0% C 0.112 H 266.5°. Best body text is #FFFFFF at 12.02:1 contrast (WCAG AA passes).

Color values

HEX	#1D3271
RGB	rgb(29, 50, 113)
HSL	hsl(225, 59%, 28%)
HSV	hsv(225, 74%, 44%)
CMYK	cmyk(74.3%, 55.8%, 0%, 55.7%)
CIE-LAB	lab(22.77, 15.44, -38.90)
CIE-LCH	lch(22.77, 41.86, 291.65°)
OKLab	oklab(33.99% -0.0068 -0.1119)
OKLCH	oklch(33.99% 0.112 266.5)
XYZ	xyz(4.6269, 3.7342, 16.0965)
Luminance	0.0374 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3271 #715C1D

analogous

#1D5C71 #1D3271 #321D71

triadic

#1D3271 #711D32 #32711D

tetradic

#1D3271 #711D5C #715C1D #1D7132

square

#1D3271 #711D5C #715C1D #1D7132

split-complementary

#1D3271 #71321D #5C711D

monochromatic

#060B18 #111C40 #1D3271 #2948A2 #3C60CD

Accessibility & contrast

On white

12.02

#1D3271 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#1D3271 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3271

12.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3271	#FFFFFF	#000000	##FFFFFF
##1D3271	1.00	12.02	1.75	12.02
#FFFFFF	12.02	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	12.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#053A73

Deuteranopia (green-blind)

#003370

Tritanopia (blue-blind)

#00414C

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1d3271;
/* rgb */ color: rgb(29, 50, 113);
/* oklch */ color: oklch(34.0% 0.112 266.5);

Tailwind

colors: {
  custom: {
    50: '#65699a',
    500: '#1d3271',
    950: '#000000',
  },
}

SCSS

$custom: #1d3271;
$custom-light: #65699a;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3271",
  "rgb": {
    "r": 29,
    "g": 50,
    "b": 113
  },
  "hsl": {
    "h": 225,
    "s": 59.155,
    "l": 27.843
  },
  "oklch": {
    "l": 0.33987,
    "c": 0.11213,
    "h": 266.5
  },
  "luminance": 0.03735
}

Semantic roles & 50–950 ramp

primary

#1D3271

secondary

#A58D44

accent

#BB45E2

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #1D3271

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

Preview Lab → · Contrast checker → · Palette generator →