#1D3E89#1D3E89

#1D3E89 is a dark, vivid blue. Relative luminance 0.055; OKLCH L 38.6% C 0.131 H 263.6°. Best body text is #FFFFFF at 9.99:1 contrast (WCAG AA passes).

Color values

HEX	#1D3E89
RGB	rgb(29, 62, 137)
HSL	hsl(222, 65%, 33%)
HSV	hsv(222, 79%, 54%)
CMYK	cmyk(78.8%, 54.7%, 0%, 46.3%)
CIE-LAB	lab(28.15, 16.70, -45.32)
CIE-LCH	lch(28.15, 48.30, 290.23°)
OKLab	oklab(38.65% -0.0148 -0.1306)
OKLCH	oklch(38.65% 0.131 263.6)
XYZ	xyz(6.7431, 5.5118, 24.3706)
Luminance	0.0551 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3E89 #89681D

analogous

#1D7489 #1D3E89 #321D89

triadic

#1D3E89 #891D3E #3E891D

tetradic

#1D3E89 #891D74 #89681D #1D8932

square

#1D3E89 #891D74 #89681D #1D8932

split-complementary

#1D3E89 #89321D #74891D

monochromatic

#081024 #122756 #1D3E89 #2855BC #4874D8

Accessibility & contrast

On white

9.99

#1D3E89 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#1D3E89 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3E89

9.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3E89	#FFFFFF	#000000	##FFFFFF
##1D3E89	1.00	9.99	2.10	9.99
#FFFFFF	9.99	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	9.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#04488C

Deuteranopia (green-blind)

#003E88

Tritanopia (blue-blind)

#00505D

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1d3e89;
/* rgb */ color: rgb(29, 62, 137);
/* oklch */ color: oklch(38.6% 0.131 263.6);

Tailwind

colors: {
  custom: {
    50: '#6b72ac',
    500: '#1d3e89',
    950: '#000000',
  },
}

SCSS

$custom: #1d3e89;
$custom-light: #6b72ac;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3e89",
  "rgb": {
    "r": 29,
    "g": 62,
    "b": 137
  },
  "hsl": {
    "h": 221.667,
    "s": 65.06,
    "l": 32.549
  },
  "oklch": {
    "l": 0.38645,
    "c": 0.1314,
    "h": 263.6
  },
  "luminance": 0.05513
}

Semantic roles & 50–950 ramp

primary

#1D3E89

secondary

#BA9747

accent

#B540E8

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#080810

muted

#7A7B7F

Preview Lab

Preview with #1D3E89

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

Preview Lab → · Contrast checker → · Palette generator →