#1D3F7D#1D3F7D

#1D3F7D is a dark, moderate blue. Relative luminance 0.053; OKLCH L 37.9% C 0.113 H 261.2°. Best body text is #FFFFFF at 10.20:1 contrast (WCAG AA passes).

Color values

HEX	#1D3F7D
RGB	rgb(29, 63, 125)
HSL	hsl(219, 62%, 30%)
HSV	hsv(219, 77%, 49%)
CMYK	cmyk(76.8%, 49.6%, 0%, 51%)
CIE-LAB	lab(27.56, 11.15, -38.78)
CIE-LCH	lch(27.56, 40.35, 286.03°)
OKLab	oklab(37.92% -0.0172 -0.1113)
OKLCH	oklch(37.92% 0.113 261.2)
XYZ	xyz(5.9845, 5.2962, 20.1049)
Luminance	0.0530 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3F7D #7D5B1D

analogous

#1D6F7D #1D3F7D #2B1D7D

triadic

#1D3F7D #7D1D3F #3F7D1D

tetradic

#1D3F7D #7D1D6F #7D5B1D #1D7D2B

square

#1D3F7D #7D1D6F #7D5B1D #1D7D2B

split-complementary

#1D3F7D #7D2B1D #6F7D1D

monochromatic

#060D1A #11264B #1D3F7D #2958AF #4175D3

Accessibility & contrast

On white

10.20

#1D3F7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#1D3F7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3F7D

10.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3F7D	#FFFFFF	#000000	##FFFFFF
##1D3F7D	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)

#1D467F

Deuteranopia (green-blind)

#023D7C

Tritanopia (blue-blind)

#004E58

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1d3f7d;
/* rgb */ color: rgb(29, 63, 125);
/* oklch */ color: oklch(37.9% 0.113 261.2);

Tailwind

colors: {
  custom: {
    50: '#6773a3',
    500: '#1d3f7d',
    950: '#000000',
  },
}

SCSS

$custom: #1d3f7d;
$custom-light: #6773a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3f7d",
  "rgb": {
    "r": 29,
    "g": 63,
    "b": 125
  },
  "hsl": {
    "h": 218.75,
    "s": 62.338,
    "l": 30.196
  },
  "oklch": {
    "l": 0.37919,
    "c": 0.11263,
    "h": 261.2
  },
  "luminance": 0.05297
}

Semantic roles & 50–950 ramp

primary

#1D3F7D

secondary

#B18B45

accent

#AC42E5

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1D3F7D

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

Preview Lab → · Contrast checker → · Palette generator →