#1D4889#1D4889

#1D4889 is a dark, moderate blue. Relative luminance 0.067; OKLCH L 40.9% C 0.119 H 258.7°. Best body text is #FFFFFF at 8.97:1 contrast (WCAG AA passes).

Color values

HEX	#1D4889
RGB	rgb(29, 72, 137)
HSL	hsl(216, 65%, 33%)
HSV	hsv(216, 79%, 54%)
CMYK	cmyk(78.8%, 47.4%, 0%, 46.3%)
CIE-LAB	lab(31.12, 9.81, -40.52)
CIE-LCH	lch(31.12, 41.70, 283.61°)
OKLab	oklab(40.92% -0.0232 -0.1163)
OKLCH	oklch(40.92% 0.119 258.7)
XYZ	xyz(7.3378, 6.7012, 24.5688)
Luminance	0.0670 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4889 #895E1D

analogous

#1D7E89 #1D4889 #281D89

triadic

#1D4889 #891D48 #48891D

tetradic

#1D4889 #891D7E #895E1D #1D8928

square

#1D4889 #891D7E #895E1D #1D8928

split-complementary

#1D4889 #89281D #7E891D

monochromatic

#081324 #122D56 #1D4889 #2863BC #4882D8

Accessibility & contrast

On white

8.97

#1D4889 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#1D4889 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4889

8.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4889	#FFFFFF	#000000	##FFFFFF
##1D4889	1.00	8.97	2.34	8.97
#FFFFFF	8.97	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#254E8B

Deuteranopia (green-blind)

#0B4588

Tritanopia (blue-blind)

#005762

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #1d4889;
/* rgb */ color: rgb(29, 72, 137);
/* oklch */ color: oklch(40.9% 0.119 258.7);

Tailwind

colors: {
  custom: {
    50: '#6a7aac',
    500: '#1d4889',
    950: '#000000',
  },
}

SCSS

$custom: #1d4889;
$custom-light: #6a7aac;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4889",
  "rgb": {
    "r": 29,
    "g": 72,
    "b": 137
  },
  "hsl": {
    "h": 216.111,
    "s": 65.06,
    "l": 32.549
  },
  "oklch": {
    "l": 0.40917,
    "c": 0.11856,
    "h": 258.7
  },
  "luminance": 0.06702
}

Semantic roles & 50–950 ramp

primary

#1D4889

secondary

#BA8D47

accent

#A540E8

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070910

muted

#7A7B7F

Preview Lab

Preview with #1D4889

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

Preview Lab → · Contrast checker → · Palette generator →