#1D155B#1D155B

#1D155B is a dark, moderate blue. Relative luminance 0.016; OKLCH L 26.1% C 0.118 H 279.5°. Best body text is #FFFFFF at 16.02:1 contrast (WCAG AA passes).

Color values

HEX	#1D155B
RGB	rgb(29, 21, 91)
HSL	hsl(247, 63%, 22%)
HSV	hsv(247, 77%, 36%)
CMYK	cmyk(68.1%, 76.9%, 0%, 64.3%)
CIE-LAB	lab(12.94, 27.12, -40.50)
CIE-LCH	lch(12.94, 48.74, 303.80°)
OKLab	oklab(26.12% 0.0195 -0.1169)
OKLCH	oklch(26.12% 0.118 279.5)
XYZ	xyz(2.6626, 1.5527, 10.0549)
Luminance	0.0155 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D155B #535B15

analogous

#15305B #1D155B #40155B

triadic

#1D155B #5B1D15 #155B1D

tetradic

#1D155B #5B1530 #535B15 #155B40

square

#1D155B #5B1530 #535B15 #155B40

split-complementary

#1D155B #5B4015 #305B15

monochromatic

#080619 #0D0A29 #1D155B #2D208D #3D2CBE

Accessibility & contrast

On white

16.02

#1D155B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#1D155B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D155B

16.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D155B	#FFFFFF	#000000	##FFFFFF
##1D155B	1.00	16.02	1.31	16.02
#FFFFFF	16.02	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00245D

Deuteranopia (green-blind)

#001F5A

Tritanopia (blue-blind)

#002836

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #1d155b;
/* rgb */ color: rgb(29, 21, 91);
/* oklch */ color: oklch(26.1% 0.118 279.5);

Tailwind

colors: {
  custom: {
    50: '#62538a',
    500: '#1d155b',
    950: '#000000',
  },
}

SCSS

$custom: #1d155b;
$custom-light: #62538a;
$custom-dark: #000000;

JSON

{
  "hex": "#1d155b",
  "rgb": {
    "r": 29,
    "g": 21,
    "b": 91
  },
  "hsl": {
    "h": 246.857,
    "s": 62.5,
    "l": 21.961
  },
  "oklch": {
    "l": 0.26117,
    "c": 0.11848,
    "h": 279.5
  },
  "luminance": 0.01553
}

Semantic roles & 50–950 ramp

primary

#1D155B

secondary

#889239

accent

#E642D3

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#06020C

muted

#7A787D

Preview Lab

Preview with #1D155B

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

Preview Lab → · Contrast checker → · Palette generator →