#151D5D#151D5D

#151D5D is a dark, moderate blue. Relative luminance 0.018; OKLCH L 27.2% C 0.113 H 271.1°. Best body text is #FFFFFF at 15.38:1 contrast (WCAG AA passes).

Color values

HEX	#151D5D
RGB	rgb(21, 29, 93)
HSL	hsl(233, 63%, 22%)
HSV	hsv(233, 77%, 36%)
CMYK	cmyk(77.4%, 68.8%, 0%, 63.5%)
CIE-LAB	lab(14.56, 21.29, -39.21)
CIE-LCH	lch(14.56, 44.62, 298.50°)
OKLab	oklab(27.2% 0.0021 -0.1133)
OKLCH	oklch(27.2% 0.113 271.1)
XYZ	xyz(2.7237, 1.8282, 10.5631)
Luminance	0.0183 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151D5D #5D5515

analogous

#15415D #151D5D #31155D

triadic

#151D5D #5D151D #1D5D15

tetradic

#151D5D #5D1541 #5D5515 #155D31

square

#151D5D #5D1541 #5D5515 #155D31

split-complementary

#151D5D #5D3115 #415D15

monochromatic

#060819 #0A0D2B #151D5D #202D8F #2C3CC1

Accessibility & contrast

On white

15.38

#151D5D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#151D5D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151D5D

15.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151D5D	#FFFFFF	#000000	##FFFFFF
##151D5D	1.00	15.38	1.37	15.38
#FFFFFF	15.38	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00285F

Deuteranopia (green-blind)

#00215C

Tritanopia (blue-blind)

#002E3A

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #151d5d;
/* rgb */ color: rgb(21, 29, 93);
/* oklch */ color: oklch(27.2% 0.113 271.1);

Tailwind

colors: {
  custom: {
    50: '#5f598c',
    500: '#151d5d',
    950: '#000000',
  },
}

SCSS

$custom: #151d5d;
$custom-light: #5f598c;
$custom-dark: #000000;

JSON

{
  "hex": "#151d5d",
  "rgb": {
    "r": 21,
    "g": 29,
    "b": 93
  },
  "hsl": {
    "h": 233.333,
    "s": 63.158,
    "l": 22.353
  },
  "oklch": {
    "l": 0.27195,
    "c": 0.11332,
    "h": 271.1
  },
  "luminance": 0.01828
}

Semantic roles & 50–950 ramp

primary

#151D5D

secondary

#948A39

accent

#D442E6

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05030C

muted

#79787D

Preview Lab

Preview with #151D5D

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

Preview Lab → · Contrast checker → · Palette generator →