#1D1E8B#1D1E8B

#1D1E8B is a dark, vivid blue. Relative luminance 0.031; OKLCH L 32.9% C 0.172 H 271.4°. Best body text is #FFFFFF at 13.04:1 contrast (WCAG AA passes).

Color values

HEX	#1D1E8B
RGB	rgb(29, 30, 139)
HSL	hsl(239, 65%, 33%)
HSV	hsv(239, 79%, 55%)
CMYK	cmyk(79.1%, 78.4%, 0%, 45.5%)
CIE-LAB	lab(20.26, 38.63, -59.49)
CIE-LCH	lch(20.26, 70.93, 303.00°)
OKLab	oklab(32.91% 0.0043 -0.1722)
OKLCH	oklch(32.91% 0.172 271.4)
XYZ	xyz(5.6296, 3.0532, 24.7137)
Luminance	0.0305 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D1E8B #8B8A1D

analogous

#1D558B #1D1E8B #531D8B

triadic

#1D1E8B #8B1D1E #1E8B1D

tetradic

#1D1E8B #8B1D55 #8B8A1D #1D8B53

square

#1D1E8B #8B1D55 #8B8A1D #1D8B53

split-complementary

#1D1E8B #8B531D #558B1D

monochromatic

#080826 #121358 #1D1E8B #2829BE #494BD9

Accessibility & contrast

On white

13.04

#1D1E8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#1D1E8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D1E8B

13.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D1E8B	#FFFFFF	#000000	##FFFFFF
##1D1E8B	1.00	13.04	1.61	13.04
#FFFFFF	13.04	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00368E

Deuteranopia (green-blind)

#002B89

Tritanopia (blue-blind)

#003F53

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1d1e8b;
/* rgb */ color: rgb(29, 30, 139);
/* oklch */ color: oklch(32.9% 0.172 271.4);

Tailwind

colors: {
  custom: {
    50: '#6e5cae',
    500: '#1d1e8b',
    950: '#000000',
  },
}

SCSS

$custom: #1d1e8b;
$custom-light: #6e5cae;
$custom-dark: #000000;

JSON

{
  "hex": "#1d1e8b",
  "rgb": {
    "r": 29,
    "g": 30,
    "b": 139
  },
  "hsl": {
    "h": 239.455,
    "s": 65.476,
    "l": 32.941
  },
  "oklch": {
    "l": 0.32907,
    "c": 0.17228,
    "h": 271.4
  },
  "luminance": 0.03054
}

Semantic roles & 50–950 ramp

primary

#1D1E8B

secondary

#BBBA49

accent

#E73FE8

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#080410

muted

#7B797F

Preview Lab

Preview with #1D1E8B

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

Preview Lab → · Contrast checker → · Palette generator →