#151D5C#151D5C

#151D5C is a dark, moderate blue. Relative luminance 0.018; OKLCH L 27.1% C 0.112 H 271.1°. Best body text is #FFFFFF at 15.42:1 contrast (WCAG AA passes).

Color values

HEX	#151D5C
RGB	rgb(21, 29, 92)
HSL	hsl(233, 63%, 22%)
HSV	hsv(233, 77%, 36%)
CMYK	cmyk(77.2%, 68.5%, 0%, 63.9%)
CIE-LAB	lab(14.46, 20.88, -38.70)
CIE-LCH	lch(14.46, 43.98, 298.35°)
OKLab	oklab(27.09% 0.0022 -0.1118)
OKLCH	oklch(27.09% 0.112 271.1)
XYZ	xyz(2.6797, 1.8106, 10.3314)
Luminance	0.0181 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151D5C #5C5415

analogous

#15415C #151D5C #30155C

triadic

#151D5C #5C151D #1D5C15

tetradic

#151D5C #5C1541 #5C5415 #155C30

square

#151D5C #5C1541 #5C5415 #155C30

split-complementary

#151D5C #5C3015 #415C15

monochromatic

#060819 #0A0D2A #151D5C #202D8E #2C3CC0

Accessibility & contrast

On white

15.42

#151D5C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#151D5C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151D5C

15.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151D5C	#FFFFFF	#000000	##FFFFFF
##151D5C	1.00	15.42	1.36	15.42
#FFFFFF	15.42	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00285E

Deuteranopia (green-blind)

#00215B

Tritanopia (blue-blind)

#002D39

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #151d5c;
/* rgb */ color: rgb(21, 29, 92);
/* oklch */ color: oklch(27.1% 0.112 271.1);

Tailwind

colors: {
  custom: {
    50: '#5e598b',
    500: '#151d5c',
    950: '#000000',
  },
}

SCSS

$custom: #151d5c;
$custom-light: #5e598b;
$custom-dark: #000000;

JSON

{
  "hex": "#151d5c",
  "rgb": {
    "r": 21,
    "g": 29,
    "b": 92
  },
  "hsl": {
    "h": 233.239,
    "s": 62.832,
    "l": 22.157
  },
  "oklch": {
    "l": 0.27092,
    "c": 0.11184,
    "h": 271.1
  },
  "luminance": 0.01811
}

Semantic roles & 50–950 ramp

primary

#151D5C

secondary

#938939

accent

#D342E6

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05030C

muted

#79787D

Preview Lab

Preview with #151D5C

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

Preview Lab → · Contrast checker → · Palette generator →