#151D55#151D55

#151D55 is a dark, moderate blue. Relative luminance 0.017; OKLCH L 26.4% C 0.101 H 271.4°. Best body text is #FFFFFF at 15.69:1 contrast (WCAG AA passes).

Color values

HEX	#151D55
RGB	rgb(21, 29, 85)
HSL	hsl(233, 60%, 21%)
HSV	hsv(233, 75%, 33%)
CMYK	cmyk(75.3%, 65.9%, 0%, 66.7%)
CIE-LAB	lab(13.79, 18.03, -35.09)
CIE-LCH	lch(13.79, 39.45, 297.20°)
OKLab	oklab(26.39% 0.0024 -0.1012)
OKLCH	oklch(26.39% 0.101 271.4)
XYZ	xyz(2.3878, 1.6938, 8.7937)
Luminance	0.0169 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151D55 #554D15

analogous

#153D55 #151D55 #2D1555

triadic

#151D55 #55151D #1D5515

tetradic

#151D55 #55153D #554D15 #15552D

square

#151D55 #55153D #554D15 #15552D

split-complementary

#151D55 #552D15 #3D5515

monochromatic

#060819 #090C24 #151D55 #212E86 #2D3EB7

Accessibility & contrast

On white

15.69

#151D55 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.34

#151D55 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151D55

15.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151D55	#FFFFFF	#000000	##FFFFFF
##151D55	1.00	15.69	1.34	15.69
#FFFFFF	15.69	1.00	21.00	1.00
#000000	1.34	21.00	1.00	21.00
##FFFFFF	15.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002657

Deuteranopia (green-blind)

#002054

Tritanopia (blue-blind)

#002B35

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #151d55;
/* rgb */ color: rgb(21, 29, 85);
/* oklch */ color: oklch(26.4% 0.101 271.4);

Tailwind

colors: {
  custom: {
    50: '#5c5885',
    500: '#151d55',
    950: '#000000',
  },
}

SCSS

$custom: #151d55;
$custom-light: #5c5885;
$custom-dark: #000000;

JSON

{
  "hex": "#151d55",
  "rgb": {
    "r": 21,
    "g": 29,
    "b": 85
  },
  "hsl": {
    "h": 232.5,
    "s": 60.377,
    "l": 20.784
  },
  "oklch": {
    "l": 0.26391,
    "c": 0.10124,
    "h": 271.4
  },
  "luminance": 0.01694
}

Semantic roles & 50–950 ramp

primary

#151D55

secondary

#8D8239

accent

#D044E4

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#05030B

muted

#79787C

Preview Lab

Preview with #151D55

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

Preview Lab → · Contrast checker → · Palette generator →