#151B56#151B56

#151B56 is a dark, moderate blue. Relative luminance 0.016; OKLCH L 26.1% C 0.106 H 272.2°. Best body text is #FFFFFF at 15.87:1 contrast (WCAG AA passes).

Color values

HEX	#151B56
RGB	rgb(21, 27, 86)
HSL	hsl(234, 61%, 21%)
HSV	hsv(234, 76%, 34%)
CMYK	cmyk(75.6%, 68.6%, 0%, 66.3%)
CIE-LAB	lab(13.32, 19.90, -36.53)
CIE-LCH	lch(13.32, 41.60, 298.58°)
OKLab	oklab(26.07% 0.0041 -0.1055)
OKLCH	oklch(26.07% 0.106 272.2)
XYZ	xyz(2.3803, 1.6150, 8.9886)
Luminance	0.0162 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151B56 #565015

analogous

#153B56 #151B56 #2F1556

triadic

#151B56 #56151B #1B5615

tetradic

#151B56 #56153B #565015 #15562F

square

#151B56 #56153B #565015 #15562F

split-complementary

#151B56 #562F15 #3B5615

monochromatic

#060819 #090C25 #151B56 #212A87 #2D3AB8

Accessibility & contrast

On white

15.87

#151B56 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#151B56 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151B56

15.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151B56	#FFFFFF	#000000	##FFFFFF
##151B56	1.00	15.87	1.32	15.87
#FFFFFF	15.87	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002558

Deuteranopia (green-blind)

#001F55

Tritanopia (blue-blind)

#002A35

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #151b56;
/* rgb */ color: rgb(21, 27, 86);
/* oklch */ color: oklch(26.1% 0.106 272.2);

Tailwind

colors: {
  custom: {
    50: '#5d5786',
    500: '#151b56',
    950: '#000000',
  },
}

SCSS

$custom: #151b56;
$custom-light: #5d5786;
$custom-dark: #000000;

JSON

{
  "hex": "#151b56",
  "rgb": {
    "r": 21,
    "g": 27,
    "b": 86
  },
  "hsl": {
    "h": 234.462,
    "s": 60.748,
    "l": 20.98
  },
  "oklch": {
    "l": 0.26074,
    "c": 0.10555,
    "h": 272.2
  },
  "luminance": 0.01615
}

Semantic roles & 50–950 ramp

primary

#151B56

secondary

#8E8639

accent

#D544E4

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#05030B

muted

#79787C

Preview Lab

Preview with #151B56

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

Preview Lab → · Contrast checker → · Palette generator →