#151B59#151B59

#151B59 is a dark, moderate blue. Relative luminance 0.017; OKLCH L 26.4% C 0.110 H 272.0°. Best body text is #FFFFFF at 15.75:1 contrast (WCAG AA passes).

Color values

HEX	#151B59
RGB	rgb(21, 27, 89)
HSL	hsl(235, 62%, 22%)
HSV	hsv(235, 76%, 35%)
CMYK	cmyk(76.4%, 69.7%, 0%, 65.1%)
CIE-LAB	lab(13.62, 21.12, -38.07)
CIE-LCH	lch(13.62, 43.54, 299.01°)
OKLab	oklab(26.38% 0.0039 -0.11)
OKLCH	oklch(26.38% 0.11 272)
XYZ	xyz(2.5038, 1.6643, 9.6386)
Luminance	0.0167 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151B59 #595315

analogous

#153D59 #151B59 #311559

triadic

#151B59 #59151B #1B5915

tetradic

#151B59 #59153D #595315 #155931

square

#151B59 #59153D #595315 #155931

split-complementary

#151B59 #593115 #3D5915

monochromatic

#060819 #090C27 #151B59 #212A8B #2C39BC

Accessibility & contrast

On white

15.75

#151B59 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.33

#151B59 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151B59

15.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151B59	#FFFFFF	#000000	##FFFFFF
##151B59	1.00	15.75	1.33	15.75
#FFFFFF	15.75	1.00	21.00	1.00
#000000	1.33	21.00	1.00	21.00
##FFFFFF	15.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00265B

Deuteranopia (green-blind)

#002058

Tritanopia (blue-blind)

#002B37

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #151b59;
/* rgb */ color: rgb(21, 27, 89);
/* oklch */ color: oklch(26.4% 0.110 272.0);

Tailwind

colors: {
  custom: {
    50: '#5e5789',
    500: '#151b59',
    950: '#000000',
  },
}

SCSS

$custom: #151b59;
$custom-light: #5e5789;
$custom-dark: #000000;

JSON

{
  "hex": "#151b59",
  "rgb": {
    "r": 21,
    "g": 27,
    "b": 89
  },
  "hsl": {
    "h": 234.706,
    "s": 61.818,
    "l": 21.569
  },
  "oklch": {
    "l": 0.26382,
    "c": 0.11005,
    "h": 272
  },
  "luminance": 0.01665
}

Semantic roles & 50–950 ramp

primary

#151B59

secondary

#918939

accent

#D743E5

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05030B

muted

#79787C

Preview Lab

Preview with #151B59

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

Preview Lab → · Contrast checker → · Palette generator →