#151B73#151B73

#151B73 is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.2% C 0.147 H 270.3°. Best body text is #FFFFFF at 14.62:1 contrast (WCAG AA passes).

Color values

HEX	#151B73
RGB	rgb(21, 27, 115)
HSL	hsl(236, 69%, 27%)
HSV	hsv(236, 82%, 45%)
CMYK	cmyk(81.7%, 76.5%, 0%, 54.9%)
CIE-LAB	lab(16.41, 31.20, -50.62)
CIE-LCH	lch(16.41, 59.46, 301.65°)
OKLab	oklab(29.24% 0.0007 -0.1466)
OKLCH	oklch(29.24% 0.147 270.3)
XYZ	xyz(3.7946, 2.1807, 16.4373)
Luminance	0.0218 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151B73 #736D15

analogous

#154A73 #151B73 #3E1573

triadic

#151B73 #73151B #1B7315

tetradic

#151B73 #73154A #736D15 #15733E

square

#151B73 #73154A #736D15 #15733E

split-complementary

#151B73 #733E15 #4A7315

monochromatic

#05061A #0C0F3F #151B73 #1E27A7 #2A35D8

Accessibility & contrast

On white

14.62

#151B73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#151B73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151B73

14.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151B73	#FFFFFF	#000000	##FFFFFF
##151B73	1.00	14.62	1.44	14.62
#FFFFFF	14.62	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D76

Deuteranopia (green-blind)

#002471

Tritanopia (blue-blind)

#003445

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #151b73;
/* rgb */ color: rgb(21, 27, 115);
/* oklch */ color: oklch(29.2% 0.147 270.3);

Tailwind

colors: {
  custom: {
    50: '#65589c',
    500: '#151b73',
    950: '#000000',
  },
}

SCSS

$custom: #151b73;
$custom-light: #65589c;
$custom-dark: #000000;

JSON

{
  "hex": "#151b73",
  "rgb": {
    "r": 21,
    "g": 27,
    "b": 115
  },
  "hsl": {
    "h": 236.17,
    "s": 69.118,
    "l": 26.667
  },
  "oklch": {
    "l": 0.29241,
    "c": 0.14659,
    "h": 270.3
  },
  "luminance": 0.02181
}

Semantic roles & 50–950 ramp

primary

#151B73

secondary

#A9A23B

accent

#E13CEC

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #151B73

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

Preview Lab → · Contrast checker → · Palette generator →