#1D1F9E#1D1F9E

#1D1F9E is a dark, vivid blue. Relative luminance 0.037; OKLCH L 35.3% C 0.195 H 270.1°. Best body text is #FFFFFF at 12.06:1 contrast (WCAG AA passes).

Color values

HEX	#1D1F9E
RGB	rgb(29, 31, 158)
HSL	hsl(239, 69%, 37%)
HSV	hsv(239, 82%, 62%)
CMYK	cmyk(81.6%, 80.4%, 0%, 38%)
CIE-LAB	lab(22.69, 44.48, -67.21)
CIE-LCH	lch(22.69, 80.59, 303.50°)
OKLab	oklab(35.27% 0.0002 -0.1946)
OKLCH	oklch(35.27% 0.195 270.1)
XYZ	xyz(7.1661, 3.7090, 32.6793)
Luminance	0.0371 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D1F9E #9E9C1D

analogous

#1D609E #1D1F9E #5C1D9E

triadic

#1D1F9E #9E1D1F #1F9E1D

tetradic

#1D1F9E #9E1D60 #9E9C1D #1D9E5C

square

#1D1F9E #9E1D60 #9E9C1D #1D9E5C

split-complementary

#1D1F9E #9E5C1D #609E1D

monochromatic

#0A0B37 #14156A #1D1F9E #2629D2 #5658E0

Accessibility & contrast

On white

12.06

#1D1F9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#1D1F9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D1F9E

12.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D1F9E	#FFFFFF	#000000	##FFFFFF
##1D1F9E	1.00	12.06	1.74	12.06
#FFFFFF	12.06	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003DA2

Deuteranopia (green-blind)

#002F9C

Tritanopia (blue-blind)

#00475F

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1d1f9e;
/* rgb */ color: rgb(29, 31, 158);
/* oklch */ color: oklch(35.3% 0.195 270.1);

Tailwind

colors: {
  custom: {
    50: '#735dbc',
    500: '#1d1f9e',
    950: '#000000',
  },
}

SCSS

$custom: #1d1f9e;
$custom-light: #735dbc;
$custom-dark: #000000;

JSON

{
  "hex": "#1d1f9e",
  "rgb": {
    "r": 29,
    "g": 31,
    "b": 158
  },
  "hsl": {
    "h": 239.07,
    "s": 68.984,
    "l": 36.667
  },
  "oklch": {
    "l": 0.35265,
    "c": 0.19463,
    "h": 270.1
  },
  "luminance": 0.0371
}

Semantic roles & 50–950 ramp

primary

#1D1F9E

secondary

#C3C154

accent

#E93CEC

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #1D1F9E

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

Preview Lab → · Contrast checker → · Palette generator →