#1D4A8D#1D4A8D

#1D4A8D is a dark, vivid blue. Relative luminance 0.071; OKLCH L 41.7% C 0.122 H 258.5°. Best body text is #FFFFFF at 8.69:1 contrast (WCAG AA passes).

Color values

HEX	#1D4A8D
RGB	rgb(29, 74, 141)
HSL	hsl(216, 66%, 33%)
HSV	hsv(216, 79%, 55%)
CMYK	cmyk(79.4%, 47.5%, 0%, 44.7%)
CIE-LAB	lab(31.99, 10.07, -41.58)
CIE-LCH	lch(31.99, 42.78, 283.61°)
OKLab	oklab(41.68% -0.0242 -0.1193)
OKLCH	oklch(41.68% 0.122 258.5)
XYZ	xyz(7.7614, 7.0810, 26.1518)
Luminance	0.0708 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4A8D #8D601D

analogous

#1D828D #1D4A8D #281D8D

triadic

#1D4A8D #8D1D4A #4A8D1D

tetradic

#1D4A8D #8D1D82 #8D601D #1D8D28

square

#1D4A8D #8D1D82 #8D601D #1D8D28

split-complementary

#1D4A8D #8D281D #828D1D

monochromatic

#081527 #132F5A #1D4A8D #2765C0 #4B84DA

Accessibility & contrast

On white

8.69

#1D4A8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#1D4A8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4A8D

8.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4A8D	#FFFFFF	#000000	##FFFFFF
##1D4A8D	1.00	8.69	2.42	8.69
#FFFFFF	8.69	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#265190

Deuteranopia (green-blind)

#09468C

Tritanopia (blue-blind)

#005A64

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #1d4a8d;
/* rgb */ color: rgb(29, 74, 141);
/* oklch */ color: oklch(41.7% 0.122 258.5);

Tailwind

colors: {
  custom: {
    50: '#6b7baf',
    500: '#1d4a8d',
    950: '#000000',
  },
}

SCSS

$custom: #1d4a8d;
$custom-light: #6b7baf;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4a8d",
  "rgb": {
    "r": 29,
    "g": 74,
    "b": 141
  },
  "hsl": {
    "h": 215.893,
    "s": 65.882,
    "l": 33.333
  },
  "oklch": {
    "l": 0.41677,
    "c": 0.12176,
    "h": 258.5
  },
  "luminance": 0.07082
}

Semantic roles & 50–950 ramp

primary

#1D4A8D

secondary

#BC8E4A

accent

#A53FE9

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#080910

muted

#7A7B7F

Preview Lab

Preview with #1D4A8D

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

Preview Lab → · Contrast checker → · Palette generator →