#1D2F83#1D2F83

#1D2F83 is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.0% C 0.142 H 268.5°. Best body text is #FFFFFF at 11.75:1 contrast (WCAG AA passes).

Color values

HEX	#1D2F83
RGB	rgb(29, 47, 131)
HSL	hsl(229, 64%, 31%)
HSV	hsv(229, 78%, 51%)
CMYK	cmyk(77.9%, 64.1%, 0%, 48.6%)
CIE-LAB	lab(23.45, 24.75, -49.23)
CIE-LCH	lch(23.45, 55.10, 296.69°)
OKLab	oklab(34.97% -0.0038 -0.1423)
OKLCH	oklch(34.97% 0.142 268.5)
XYZ	xyz(5.6185, 3.9323, 21.9312)
Luminance	0.0393 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2F83 #83711D

analogous

#1D6283 #1D2F83 #3E1D83

triadic

#1D2F83 #831D2F #2F831D

tetradic

#1D2F83 #831D62 #83711D #1D833E

square

#1D2F83 #831D62 #83711D #1D833E

split-complementary

#1D2F83 #833E1D #62831D

monochromatic

#070B1F #121D51 #1D2F83 #2841B5 #455ED6

Accessibility & contrast

On white

11.75

#1D2F83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#1D2F83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2F83

11.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2F83	#FFFFFF	#000000	##FFFFFF
##1D2F83	1.00	11.75	1.79	11.75
#FFFFFF	11.75	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D86

Deuteranopia (green-blind)

#003381

Tritanopia (blue-blind)

#004554

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1d2f83;
/* rgb */ color: rgb(29, 47, 131);
/* oklch */ color: oklch(35.0% 0.142 268.5);

Tailwind

colors: {
  custom: {
    50: '#6a67a8',
    500: '#1d2f83',
    950: '#000000',
  },
}

SCSS

$custom: #1d2f83;
$custom-light: #6a67a8;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2f83",
  "rgb": {
    "r": 29,
    "g": 47,
    "b": 131
  },
  "hsl": {
    "h": 229.412,
    "s": 63.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.34967,
    "c": 0.14234,
    "h": 268.5
  },
  "luminance": 0.03933
}

Semantic roles & 50–950 ramp

primary

#1D2F83

secondary

#B6A246

accent

#CA41E7

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070610

muted

#7A7A7F

Preview Lab

Preview with #1D2F83

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

Preview Lab → · Contrast checker → · Palette generator →