#181570#181570

#181570 is a dark, vivid blue. Relative luminance 0.019; OKLCH L 28.2% C 0.148 H 272.9°. Best body text is #FFFFFF at 15.22:1 contrast (WCAG AA passes).

Color values

HEX	#181570
RGB	rgb(24, 21, 112)
HSL	hsl(242, 68%, 26%)
HSV	hsv(242, 81%, 44%)
CMYK	cmyk(78.6%, 81.2%, 0%, 56.1%)
CIE-LAB	lab(14.95, 34.00, -51.07)
CIE-LCH	lch(14.95, 61.36, 303.66°)
OKLab	oklab(28.16% 0.0075 -0.1478)
OKLCH	oklch(28.16% 0.148 272.9)
XYZ	xyz(3.5685, 1.9000, 15.5048)
Luminance	0.0190 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181570 #6D7015

analogous

#153F70 #181570 #451570

triadic

#181570 #701815 #157018

tetradic

#181570 #70153F #6D7015 #157045

square

#181570 #70153F #6D7015 #157045

split-complementary

#181570 #704515 #3F7015

monochromatic

#06051A #0D0B3C #181570 #231FA4 #2E29D7

Accessibility & contrast

On white

15.22

#181570 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#181570 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181570

15.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181570	#FFFFFF	#000000	##FFFFFF
##181570	1.00	15.22	1.38	15.22
#FFFFFF	15.22	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A73

Deuteranopia (green-blind)

#00216E

Tritanopia (blue-blind)

#003142

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #181570;
/* rgb */ color: rgb(24, 21, 112);
/* oklch */ color: oklch(28.2% 0.148 272.9);

Tailwind

colors: {
  custom: {
    50: '#66549a',
    500: '#181570',
    950: '#000000',
  },
}

SCSS

$custom: #181570;
$custom-light: #66549a;
$custom-dark: #000000;

JSON

{
  "hex": "#181570",
  "rgb": {
    "r": 24,
    "g": 21,
    "b": 112
  },
  "hsl": {
    "h": 241.978,
    "s": 68.421,
    "l": 26.078
  },
  "oklch": {
    "l": 0.28156,
    "c": 0.14798,
    "h": 272.9
  },
  "luminance": 0.019
}

Semantic roles & 50–950 ramp

primary

#181570

secondary

#A3A63B

accent

#EB3DE6

background

#F6F4F9

surface

#EBE8F2

border

#C6C4CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #181570

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

Preview Lab → · Contrast checker → · Palette generator →