#1D4A8A#1D4A8A

#1D4A8A is a dark, moderate blue. Relative luminance 0.070; OKLCH L 41.5% C 0.117 H 257.8°. Best body text is #FFFFFF at 8.75:1 contrast (WCAG AA passes).

Color values

HEX	#1D4A8A
RGB	rgb(29, 74, 138)
HSL	hsl(215, 65%, 33%)
HSV	hsv(215, 79%, 54%)
CMYK	cmyk(79%, 46.4%, 0%, 45.9%)
CIE-LAB	lab(31.79, 8.86, -40.06)
CIE-LCH	lch(31.79, 41.02, 282.47°)
OKLab	oklab(41.46% -0.0247 -0.1148)
OKLCH	oklch(41.46% 0.117 257.8)
XYZ	xyz(7.5412, 6.9929, 24.9921)
Luminance	0.0699 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4A8A #8A5D1D

analogous

#1D808A #1D4A8A #261D8A

triadic

#1D4A8A #8A1D4A #4A8A1D

tetradic

#1D4A8A #8A1D80 #8A5D1D #1D8A26

square

#1D4A8A #8A1D80 #8A5D1D #1D8A26

split-complementary

#1D4A8A #8A261D #808A1D

monochromatic

#081425 #122F57 #1D4A8A #2865BD #4984D9

Accessibility & contrast

On white

8.75

#1D4A8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#1D4A8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4A8A

8.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4A8A	#FFFFFF	#000000	##FFFFFF
##1D4A8A	1.00	8.75	2.40	8.75
#FFFFFF	8.75	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#29508C

Deuteranopia (green-blind)

#114689

Tritanopia (blue-blind)

#005963

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #1d4a8a;
/* rgb */ color: rgb(29, 74, 138);
/* oklch */ color: oklch(41.5% 0.117 257.8);

Tailwind

colors: {
  custom: {
    50: '#6a7cac',
    500: '#1d4a8a',
    950: '#000000',
  },
}

SCSS

$custom: #1d4a8a;
$custom-light: #6a7cac;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4a8a",
  "rgb": {
    "r": 29,
    "g": 74,
    "b": 138
  },
  "hsl": {
    "h": 215.229,
    "s": 65.269,
    "l": 32.745
  },
  "oklch": {
    "l": 0.41458,
    "c": 0.11749,
    "h": 257.8
  },
  "luminance": 0.06994
}

Semantic roles & 50–950 ramp

primary

#1D4A8A

secondary

#BB8B48

accent

#A340E8

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070910

muted

#7A7B7F

Preview Lab

Preview with #1D4A8A

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

Preview Lab → · Contrast checker → · Palette generator →