#1D4E9E#1D4E9E

#1D4E9E is a dark, vivid blue. Relative luminance 0.082; OKLCH L 43.9% C 0.141 H 259.9°. Best body text is #FFFFFF at 7.97:1 contrast (WCAG AA passes).

Color values

HEX	#1D4E9E
RGB	rgb(29, 78, 158)
HSL	hsl(217, 69%, 37%)
HSV	hsv(217, 82%, 62%)
CMYK	cmyk(81.6%, 50.6%, 0%, 38%)
CIE-LAB	lab(34.35, 14.20, -48.11)
CIE-LCH	lch(34.35, 50.16, 286.45°)
OKLab	oklab(43.86% -0.0247 -0.1384)
OKLCH	oklch(43.86% 0.141 259.9)
XYZ	xyz(9.4004, 8.1775, 33.4241)
Luminance	0.0818 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4E9E #9E6D1D

analogous

#1D8F9E #1D4E9E #2C1D9E

triadic

#1D4E9E #9E1D4E #4E9E1D

tetradic

#1D4E9E #9E1D8F #9E6D1D #1D9E2C

square

#1D4E9E #9E1D8F #9E6D1D #1D9E2C

split-complementary

#1D4E9E #9E2C1D #8F9E1D

monochromatic

#0A1B37 #14346A #1D4E9E #2668D2 #568AE0

Accessibility & contrast

On white

7.97

#1D4E9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#1D4E9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4E9E

7.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4E9E	#FFFFFF	#000000	##FFFFFF
##1D4E9E	1.00	7.97	2.64	7.97
#FFFFFF	7.97	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D57A1

Deuteranopia (green-blind)

#004B9C

Tritanopia (blue-blind)

#00616E

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #1d4e9e;
/* rgb */ color: rgb(29, 78, 158);
/* oklch */ color: oklch(43.9% 0.141 259.9);

Tailwind

colors: {
  custom: {
    50: '#6f7ebb',
    500: '#1d4e9e',
    950: '#000000',
  },
}

SCSS

$custom: #1d4e9e;
$custom-light: #6f7ebb;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4e9e",
  "rgb": {
    "r": 29,
    "g": 78,
    "b": 158
  },
  "hsl": {
    "h": 217.209,
    "s": 68.984,
    "l": 36.667
  },
  "oklch": {
    "l": 0.43865,
    "c": 0.14063,
    "h": 259.9
  },
  "luminance": 0.08179
}

Semantic roles & 50–950 ramp

primary

#1D4E9E

secondary

#C39954

accent

#A93CEC

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #1D4E9E

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

Preview Lab → · Contrast checker → · Palette generator →