#1D155E#1D155E

#1D155E is a dark, vivid blue. Relative luminance 0.016; OKLCH L 26.4% C 0.123 H 278.8°. Best body text is #FFFFFF at 15.89:1 contrast (WCAG AA passes).

Color values

HEX	#1D155E
RGB	rgb(29, 21, 94)
HSL	hsl(247, 63%, 23%)
HSV	hsv(247, 78%, 37%)
CMYK	cmyk(69.1%, 77.7%, 0%, 63.1%)
CIE-LAB	lab(13.26, 28.19, -41.98)
CIE-LCH	lch(13.26, 50.57, 303.88°)
OKLab	oklab(26.45% 0.0188 -0.1212)
OKLCH	oklch(26.45% 0.123 278.8)
XYZ	xyz(2.7946, 1.6055, 10.7501)
Luminance	0.0161 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D155E #565E15

analogous

#15325E #1D155E #41155E

triadic

#1D155E #5E1D15 #155E1D

tetradic

#1D155E #5E1532 #565E15 #155E41

square

#1D155E #5E1532 #565E15 #155E41

split-complementary

#1D155E #5E4115 #325E15

monochromatic

#080619 #0E0A2C #1D155E #2C2090 #3C2BC2

Accessibility & contrast

On white

15.89

#1D155E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#1D155E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D155E

15.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D155E	#FFFFFF	#000000	##FFFFFF
##1D155E	1.00	15.89	1.32	15.89
#FFFFFF	15.89	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002560

Deuteranopia (green-blind)

#001F5D

Tritanopia (blue-blind)

#002938

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #1d155e;
/* rgb */ color: rgb(29, 21, 94);
/* oklch */ color: oklch(26.4% 0.123 278.8);

Tailwind

colors: {
  custom: {
    50: '#63538c',
    500: '#1d155e',
    950: '#000000',
  },
}

SCSS

$custom: #1d155e;
$custom-light: #63538c;
$custom-dark: #000000;

JSON

{
  "hex": "#1d155e",
  "rgb": {
    "r": 29,
    "g": 21,
    "b": 94
  },
  "hsl": {
    "h": 246.575,
    "s": 63.478,
    "l": 22.549
  },
  "oklch": {
    "l": 0.26446,
    "c": 0.12264,
    "h": 278.8
  },
  "luminance": 0.01606
}

Semantic roles & 50–950 ramp

primary

#1D155E

secondary

#8B9539

accent

#E741D4

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#06020C

muted

#7A787D

Preview Lab

Preview with #1D155E

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

Preview Lab → · Contrast checker → · Palette generator →