#1D1F7B#1D1F7B

#1D1F7B is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.3% C 0.151 H 272.6°. Best body text is #FFFFFF at 13.69:1 contrast (WCAG AA passes).

Color values

HEX	#1D1F7B
RGB	rgb(29, 31, 123)
HSL	hsl(239, 62%, 30%)
HSV	hsv(239, 76%, 48%)
CMYK	cmyk(76.4%, 74.8%, 0%, 51.8%)
CIE-LAB	lab(18.67, 32.37, -52.00)
CIE-LCH	lch(18.67, 61.25, 301.90°)
OKLab	oklab(31.25% 0.0068 -0.1505)
OKLCH	oklch(31.25% 0.151 272.6)
XYZ	xyz(4.5706, 2.6708, 19.0097)
Luminance	0.0267 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D1F7B #7B791D

analogous

#1D4E7B #1D1F7B #4A1D7B

triadic

#1D1F7B #7B1D1F #1F7B1D

tetradic

#1D1F7B #7B1D4E #7B791D #1D7B4A

square

#1D1F7B #7B1D4E #7B791D #1D7B4A

split-complementary

#1D1F7B #7B4A1D #4E7B1D

monochromatic

#060619 #111349 #1D1F7B #292BAD #4043D2

Accessibility & contrast

On white

13.69

#1D1F7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#1D1F7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D1F7B

13.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D1F7B	#FFFFFF	#000000	##FFFFFF
##1D1F7B	1.00	13.69	1.53	13.69
#FFFFFF	13.69	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00327E

Deuteranopia (green-blind)

#002979

Tritanopia (blue-blind)

#00394B

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1d1f7b;
/* rgb */ color: rgb(29, 31, 123);
/* oklch */ color: oklch(31.3% 0.151 272.6);

Tailwind

colors: {
  custom: {
    50: '#6a5ba2',
    500: '#1d1f7b',
    950: '#000000',
  },
}

SCSS

$custom: #1d1f7b;
$custom-light: #6a5ba2;
$custom-dark: #000000;

JSON

{
  "hex": "#1d1f7b",
  "rgb": {
    "r": 29,
    "g": 31,
    "b": 123
  },
  "hsl": {
    "h": 238.723,
    "s": 61.842,
    "l": 29.804
  },
  "oklch": {
    "l": 0.31252,
    "c": 0.15061,
    "h": 272.6
  },
  "luminance": 0.02671
}

Semantic roles & 50–950 ramp

primary

#1D1F7B

secondary

#AFAC45

accent

#E143E5

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #1D1F7B

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

Preview Lab → · Contrast checker → · Palette generator →