#182571#182571

#182571 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.0% C 0.131 H 269.4°. Best body text is #FFFFFF at 13.62:1 contrast (WCAG AA passes).

Color values

HEX	#182571
RGB	rgb(24, 37, 113)
HSL	hsl(231, 65%, 27%)
HSV	hsv(231, 79%, 44%)
CMYK	cmyk(78.8%, 67.3%, 0%, 55.7%)
CIE-LAB	lab(18.84, 24.01, -45.32)
CIE-LCH	lch(18.84, 51.29, 297.91°)
OKLab	oklab(30.98% -0.0014 -0.131)
OKLCH	oklch(30.98% 0.131 269.4)
XYZ	xyz(4.0179, 2.7091, 15.9307)
Luminance	0.0271 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182571 #716418

analogous

#185271 #182571 #381871

triadic

#182571 #711825 #257118

tetradic

#182571 #711852 #716418 #187138

square

#182571 #711852 #716418 #187138

split-complementary

#182571 #713818 #527118

monochromatic

#050819 #0D143F #182571 #2336A3 #3048D3

Accessibility & contrast

On white

13.62

#182571 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#182571 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182571

13.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182571	#FFFFFF	#000000	##FFFFFF
##182571	1.00	13.62	1.54	13.62
#FFFFFF	13.62	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003273

Deuteranopia (green-blind)

#002A70

Tritanopia (blue-blind)

#003947

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #182571;
/* rgb */ color: rgb(24, 37, 113);
/* oklch */ color: oklch(31.0% 0.131 269.4);

Tailwind

colors: {
  custom: {
    50: '#655f9b',
    500: '#182571',
    950: '#000000',
  },
}

SCSS

$custom: #182571;
$custom-light: #655f9b;
$custom-dark: #000000;

JSON

{
  "hex": "#182571",
  "rgb": {
    "r": 24,
    "g": 37,
    "b": 113
  },
  "hsl": {
    "h": 231.236,
    "s": 64.964,
    "l": 26.863
  },
  "oklch": {
    "l": 0.30983,
    "c": 0.13106,
    "h": 269.4
  },
  "luminance": 0.0271
}

Semantic roles & 50–950 ramp

primary

#182571

secondary

#A6973E

accent

#CF40E8

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06040E

muted

#7A797E

Preview Lab

Preview with #182571

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

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