#1D3E82#1D3E82

#1D3E82 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.1% C 0.121 H 262.6°. Best body text is #FFFFFF at 10.18:1 contrast (WCAG AA passes).

Color values

HEX	#1D3E82
RGB	rgb(29, 62, 130)
HSL	hsl(220, 64%, 31%)
HSV	hsv(220, 78%, 51%)
CMYK	cmyk(77.7%, 52.3%, 0%, 49%)
CIE-LAB	lab(27.62, 13.87, -41.81)
CIE-LCH	lch(27.62, 44.05, 288.35°)
OKLab	oklab(38.08% -0.0156 -0.1203)
OKLCH	oklch(38.08% 0.121 262.6)
XYZ	xyz(6.2571, 5.3175, 21.8114)
Luminance	0.0532 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3E82 #82611D

analogous

#1D7082 #1D3E82 #2E1D82

triadic

#1D3E82 #821D3E #3E821D

tetradic

#1D3E82 #821D70 #82611D #1D822E

square

#1D3E82 #821D70 #82611D #1D822E

split-complementary

#1D3E82 #822E1D #70821D

monochromatic

#070E1E #122650 #1D3E82 #2856B4 #4474D5

Accessibility & contrast

On white

10.18

#1D3E82 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#1D3E82 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3E82

10.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3E82	#FFFFFF	#000000	##FFFFFF
##1D3E82	1.00	10.18	2.06	10.18
#FFFFFF	10.18	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#144684

Deuteranopia (green-blind)

#003D81

Tritanopia (blue-blind)

#004E5A

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1d3e82;
/* rgb */ color: rgb(29, 62, 130);
/* oklch */ color: oklch(38.1% 0.121 262.6);

Tailwind

colors: {
  custom: {
    50: '#6972a7',
    500: '#1d3e82',
    950: '#000000',
  },
}

SCSS

$custom: #1d3e82;
$custom-light: #6972a7;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3e82",
  "rgb": {
    "r": 29,
    "g": 62,
    "b": 130
  },
  "hsl": {
    "h": 220.396,
    "s": 63.522,
    "l": 31.176
  },
  "oklch": {
    "l": 0.38078,
    "c": 0.12126,
    "h": 262.6
  },
  "luminance": 0.05318
}

Semantic roles & 50–950 ramp

primary

#1D3E82

secondary

#B59146

accent

#B141E7

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1D3E82

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

Preview Lab → · Contrast checker → · Palette generator →