#1D155D#1D155D

#1D155D is a dark, vivid blue. Relative luminance 0.016; OKLCH L 26.3% C 0.121 H 279.0°. Best body text is #FFFFFF at 15.94:1 contrast (WCAG AA passes).

Color values

HEX	#1D155D
RGB	rgb(29, 21, 93)
HSL	hsl(247, 63%, 22%)
HSV	hsv(247, 77%, 36%)
CMYK	cmyk(68.8%, 77.4%, 0%, 63.5%)
CIE-LAB	lab(13.15, 27.83, -41.49)
CIE-LCH	lch(13.15, 49.96, 303.85°)
OKLab	oklab(26.34% 0.0191 -0.1198)
OKLCH	oklch(26.34% 0.121 279)
XYZ	xyz(2.7500, 1.5876, 10.5153)
Luminance	0.0159 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D155D #555D15

analogous

#15315D #1D155D #41155D

triadic

#1D155D #5D1D15 #155D1D

tetradic

#1D155D #5D1531 #555D15 #155D41

square

#1D155D #5D1531 #555D15 #155D41

split-complementary

#1D155D #5D4115 #315D15

monochromatic

#080619 #0D0A2B #1D155D #2D208F #3C2CC1

Accessibility & contrast

On white

15.94

#1D155D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#1D155D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D155D

15.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D155D	#FFFFFF	#000000	##FFFFFF
##1D155D	1.00	15.94	1.32	15.94
#FFFFFF	15.94	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00255F

Deuteranopia (green-blind)

#001F5C

Tritanopia (blue-blind)

#002937

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #1d155d;
/* rgb */ color: rgb(29, 21, 93);
/* oklch */ color: oklch(26.3% 0.121 279.0);

Tailwind

colors: {
  custom: {
    50: '#63538c',
    500: '#1d155d',
    950: '#000000',
  },
}

SCSS

$custom: #1d155d;
$custom-light: #63538c;
$custom-dark: #000000;

JSON

{
  "hex": "#1d155d",
  "rgb": {
    "r": 29,
    "g": 21,
    "b": 93
  },
  "hsl": {
    "h": 246.667,
    "s": 63.158,
    "l": 22.353
  },
  "oklch": {
    "l": 0.26336,
    "c": 0.12127,
    "h": 279
  },
  "luminance": 0.01588
}

Semantic roles & 50–950 ramp

primary

#1D155D

secondary

#8A9439

accent

#E642D4

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#06020C

muted

#7A787D

Preview Lab

Preview with #1D155D

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

Preview Lab → · Contrast checker → · Palette generator →