#1D158C#1D158C

#1D158C is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.9% C 0.181 H 272.2°. Best body text is #FFFFFF at 13.65:1 contrast (WCAG AA passes).

Color values

HEX	#1D158C
RGB	rgb(29, 21, 140)
HSL	hsl(244, 74%, 32%)
HSV	hsv(244, 85%, 55%)
CMYK	cmyk(79.3%, 85%, 0%, 45.1%)
CIE-LAB	lab(18.76, 43.65, -62.60)
CIE-LCH	lch(18.76, 76.31, 304.89°)
OKLab	oklab(31.9% 0.0069 -0.1811)
OKLCH	oklch(31.9% 0.181 272.2)
XYZ	xyz(5.5069, 2.6904, 25.0349)
Luminance	0.0269 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D158C #848C15

analogous

#15498C #1D158C #59158C

triadic

#1D158C #8C1D15 #158C1D

tetradic

#1D158C #8C1549 #848C15 #158C59

square

#1D158C #8C1549 #848C15 #158C59

split-complementary

#1D158C #8C5915 #498C15

monochromatic

#070522 #120D57 #1D158C #281DC1 #453AE1

Accessibility & contrast

On white

13.65

#1D158C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#1D158C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D158C

13.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D158C	#FFFFFF	#000000	##FFFFFF
##1D158C	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)

#00338F

Deuteranopia (green-blind)

#00288A

Tritanopia (blue-blind)

#003C52

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1d158c;
/* rgb */ color: rgb(29, 21, 140);
/* oklch */ color: oklch(31.9% 0.181 272.2);

Tailwind

colors: {
  custom: {
    50: '#6f57af',
    500: '#1d158c',
    950: '#000000',
  },
}

SCSS

$custom: #1d158c;
$custom-light: #6f57af;
$custom-dark: #000000;

JSON

{
  "hex": "#1d158c",
  "rgb": {
    "r": 29,
    "g": 21,
    "b": 140
  },
  "hsl": {
    "h": 244.034,
    "s": 73.913,
    "l": 31.569
  },
  "oklch": {
    "l": 0.31897,
    "c": 0.18122,
    "h": 272.2
  },
  "luminance": 0.02691
}

Semantic roles & 50–950 ramp

primary

#1D158C

secondary

#B7C03D

accent

#F137E4

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#090311

muted

#7B7880

Preview Lab

Preview with #1D158C

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

Preview Lab → · Contrast checker → · Palette generator →