#151B70#151B70

#151B70 is a dark, vivid blue. Relative luminance 0.021; OKLCH L 28.9% C 0.143 H 270.5°. Best body text is #FFFFFF at 14.76:1 contrast (WCAG AA passes).

Color values

HEX	#151B70
RGB	rgb(21, 27, 112)
HSL	hsl(236, 68%, 26%)
HSV	hsv(236, 81%, 44%)
CMYK	cmyk(81.2%, 75.9%, 0%, 56.1%)
CIE-LAB	lab(16.07, 30.08, -49.24)
CIE-LCH	lch(16.07, 57.70, 301.42°)
OKLab	oklab(28.9% 0.0012 -0.1426)
OKLCH	oklch(28.9% 0.143 270.5)
XYZ	xyz(3.6248, 2.1127, 15.5429)
Luminance	0.0211 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151B70 #706A15

analogous

#154870 #151B70 #3C1570

triadic

#151B70 #70151B #1B7015

tetradic

#151B70 #701548 #706A15 #15703C

square

#151B70 #701548 #706A15 #15703C

split-complementary

#151B70 #703C15 #487015

monochromatic

#05061A #0B0F3C #151B70 #1F27A4 #2934D7

Accessibility & contrast

On white

14.76

#151B70 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.42

#151B70 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151B70

14.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151B70	#FFFFFF	#000000	##FFFFFF
##151B70	1.00	14.76	1.42	14.76
#FFFFFF	14.76	1.00	21.00	1.00
#000000	1.42	21.00	1.00	21.00
##FFFFFF	14.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C73

Deuteranopia (green-blind)

#00236E

Tritanopia (blue-blind)

#003343

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #151b70;
/* rgb */ color: rgb(21, 27, 112);
/* oklch */ color: oklch(28.9% 0.143 270.5);

Tailwind

colors: {
  custom: {
    50: '#64589a',
    500: '#151b70',
    950: '#000000',
  },
}

SCSS

$custom: #151b70;
$custom-light: #64589a;
$custom-dark: #000000;

JSON

{
  "hex": "#151b70",
  "rgb": {
    "r": 21,
    "g": 27,
    "b": 112
  },
  "hsl": {
    "h": 236.044,
    "s": 68.421,
    "l": 26.078
  },
  "oklch": {
    "l": 0.28897,
    "c": 0.14258,
    "h": 270.5
  },
  "luminance": 0.02113
}

Semantic roles & 50–950 ramp

primary

#151B70

secondary

#A69F3B

accent

#E03DEB

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06030E

muted

#7A787E

Preview Lab

Preview with #151B70

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

Preview Lab → · Contrast checker → · Palette generator →