#1D1888#1D1888

#1D1888 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.8% C 0.174 H 272.3°. Best body text is #FFFFFF at 13.65:1 contrast (WCAG AA passes).

Color values

HEX	#1D1888
RGB	rgb(29, 24, 136)
HSL	hsl(243, 70%, 31%)
HSV	hsv(243, 82%, 53%)
CMYK	cmyk(78.7%, 82.4%, 0%, 46.7%)
CIE-LAB	lab(18.76, 40.89, -60.08)
CIE-LCH	lch(18.76, 72.67, 304.24°)
OKLab	oklab(31.76% 0.0071 -0.1739)
OKLCH	oklch(31.76% 0.174 272.3)
XYZ	xyz(5.2758, 2.6915, 23.5292)
Luminance	0.0269 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D1888 #838818

analogous

#184B88 #1D1888 #551888

triadic

#1D1888 #881D18 #18881D

tetradic

#1D1888 #88184B #838818 #188855

square

#1D1888 #88184B #838818 #188855

split-complementary

#1D1888 #885518 #4B8818

monochromatic

#070620 #120F54 #1D1888 #2821BC #453EDD

Accessibility & contrast

On white

13.65

#1D1888 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#1D1888 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D1888

13.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D1888	#FFFFFF	#000000	##FFFFFF
##1D1888	1.00	13.65	1.54	13.65
#FFFFFF	13.65	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00338B

Deuteranopia (green-blind)

#002886

Tritanopia (blue-blind)

#003B50

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1d1888;
/* rgb */ color: rgb(29, 24, 136);
/* oklch */ color: oklch(31.8% 0.174 272.3);

Tailwind

colors: {
  custom: {
    50: '#6e58ac',
    500: '#1d1888',
    950: '#000000',
  },
}

SCSS

$custom: #1d1888;
$custom-light: #6e58ac;
$custom-dark: #000000;

JSON

{
  "hex": "#1d1888",
  "rgb": {
    "r": 29,
    "g": 24,
    "b": 136
  },
  "hsl": {
    "h": 242.679,
    "s": 70,
    "l": 31.373
  },
  "oklch": {
    "l": 0.31757,
    "c": 0.174,
    "h": 272.3
  },
  "luminance": 0.02692
}

Semantic roles & 50–950 ramp

primary

#1D1888

secondary

#B6BC40

accent

#ED3BE5

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080310

muted

#7B787F

Preview Lab

Preview with #1D1888

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

Preview Lab → · Contrast checker → · Palette generator →