#151B5D#151B5D

#151B5D is a dark, moderate blue. Relative luminance 0.017; OKLCH L 26.8% C 0.116 H 271.8°. Best body text is #FFFFFF at 15.59:1 contrast (WCAG AA passes).

Color values

HEX	#151B5D
RGB	rgb(21, 27, 93)
HSL	hsl(235, 63%, 22%)
HSV	hsv(235, 77%, 36%)
CMYK	cmyk(77.4%, 71%, 0%, 63.5%)
CIE-LAB	lab(14.02, 22.72, -40.09)
CIE-LCH	lch(14.02, 46.08, 299.53°)
OKLab	oklab(26.8% 0.0036 -0.1159)
OKLCH	oklch(26.8% 0.116 271.8)
XYZ	xyz(2.6763, 1.7333, 10.5473)
Luminance	0.0173 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151B5D #5D5715

analogous

#153F5D #151B5D #33155D

triadic

#151B5D #5D151B #1B5D15

tetradic

#151B5D #5D153F #5D5715 #155D33

square

#151B5D #5D153F #5D5715 #155D33

split-complementary

#151B5D #5D3315 #3F5D15

monochromatic

#060719 #0A0D2B #151B5D #20298F #2C38C1

Accessibility & contrast

On white

15.59

#151B5D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#151B5D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151B5D

15.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151B5D	#FFFFFF	#000000	##FFFFFF
##151B5D	1.00	15.59	1.35	15.59
#FFFFFF	15.59	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00275F

Deuteranopia (green-blind)

#00205C

Tritanopia (blue-blind)

#002D39

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #151b5d;
/* rgb */ color: rgb(21, 27, 93);
/* oklch */ color: oklch(26.8% 0.116 271.8);

Tailwind

colors: {
  custom: {
    50: '#5f578c',
    500: '#151b5d',
    950: '#000000',
  },
}

SCSS

$custom: #151b5d;
$custom-light: #5f578c;
$custom-dark: #000000;

JSON

{
  "hex": "#151b5d",
  "rgb": {
    "r": 21,
    "g": 27,
    "b": 93
  },
  "hsl": {
    "h": 235,
    "s": 63.158,
    "l": 22.353
  },
  "oklch": {
    "l": 0.26801,
    "c": 0.11595,
    "h": 271.8
  },
  "luminance": 0.01734
}

Semantic roles & 50–950 ramp

primary

#151B5D

secondary

#948D39

accent

#D842E6

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05030C

muted

#79787D

Preview Lab

Preview with #151B5D

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

Preview Lab → · Contrast checker → · Palette generator →