#1D3D85#1D3D85

#1D3D85 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.1% C 0.127 H 263.5°. Best body text is #FFFFFF at 10.20:1 contrast (WCAG AA passes).

Color values

HEX	#1D3D85
RGB	rgb(29, 61, 133)
HSL	hsl(222, 64%, 32%)
HSV	hsv(222, 78%, 52%)
CMYK	cmyk(78.2%, 54.1%, 0%, 47.8%)
CIE-LAB	lab(27.55, 15.78, -43.80)
CIE-LCH	lch(27.55, 46.56, 289.82°)
OKLab	oklab(38.1% -0.0144 -0.1261)
OKLCH	oklch(38.1% 0.127 263.5)
XYZ	xyz(6.4076, 5.2914, 22.8694)
Luminance	0.0529 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3D85 #85651D

analogous

#1D7185 #1D3D85 #311D85

triadic

#1D3D85 #851D3D #3D851D

tetradic

#1D3D85 #851D71 #85651D #1D8531

square

#1D3D85 #851D71 #85651D #1D8531

split-complementary

#1D3D85 #85311D #71851D

monochromatic

#070F21 #122653 #1D3D85 #2854B7 #4672D7

Accessibility & contrast

On white

10.20

#1D3D85 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#1D3D85 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3D85

10.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3D85	#FFFFFF	#000000	##FFFFFF
##1D3D85	1.00	10.20	2.06	10.20
#FFFFFF	10.20	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A4688

Deuteranopia (green-blind)

#003D84

Tritanopia (blue-blind)

#004E5B

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1d3d85;
/* rgb */ color: rgb(29, 61, 133);
/* oklch */ color: oklch(38.1% 0.127 263.5);

Tailwind

colors: {
  custom: {
    50: '#6a72a9',
    500: '#1d3d85',
    950: '#000000',
  },
}

SCSS

$custom: #1d3d85;
$custom-light: #6a72a9;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3d85",
  "rgb": {
    "r": 29,
    "g": 61,
    "b": 133
  },
  "hsl": {
    "h": 221.538,
    "s": 64.198,
    "l": 31.765
  },
  "oklch": {
    "l": 0.38095,
    "c": 0.12695,
    "h": 263.5
  },
  "luminance": 0.05292
}

Semantic roles & 50–950 ramp

primary

#1D3D85

secondary

#B89546

accent

#B441E7

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #1D3D85

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

Preview Lab → · Contrast checker → · Palette generator →