#181D60#181D60

#181D60 is a dark, moderate blue. Relative luminance 0.019; OKLCH L 27.7% C 0.117 H 272.7°. Best body text is #FFFFFF at 15.18:1 contrast (WCAG AA passes).

Color values

HEX	#181D60
RGB	rgb(24, 29, 96)
HSL	hsl(236, 60%, 24%)
HSV	hsv(236, 75%, 38%)
CMYK	cmyk(75%, 69.8%, 0%, 62.4%)
CIE-LAB	lab(15.05, 22.90, -40.40)
CIE-LCH	lch(15.05, 46.44, 299.54°)
OKLab	oklab(27.69% 0.0055 -0.1167)
OKLCH	oklch(27.69% 0.117 272.7)
XYZ	xyz(2.9267, 1.9172, 11.2799)
Luminance	0.0192 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181D60 #605B18

analogous

#184160 #181D60 #371860

triadic

#181D60 #60181D #1D6018

tetradic

#181D60 #601841 #605B18 #186037

square

#181D60 #601841 #605B18 #186037

split-complementary

#181D60 #603718 #416018

monochromatic

#060718 #0C0E2F #181D60 #242C91 #303BC2

Accessibility & contrast

On white

15.18

#181D60 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#181D60 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181D60

15.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181D60	#FFFFFF	#000000	##FFFFFF
##181D60	1.00	15.18	1.38	15.18
#FFFFFF	15.18	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002962

Deuteranopia (green-blind)

#00225F

Tritanopia (blue-blind)

#002F3B

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #181d60;
/* rgb */ color: rgb(24, 29, 96);
/* oklch */ color: oklch(27.7% 0.117 272.7);

Tailwind

colors: {
  custom: {
    50: '#61598e',
    500: '#181d60',
    950: '#000000',
  },
}

SCSS

$custom: #181d60;
$custom-light: #61598e;
$custom-dark: #000000;

JSON

{
  "hex": "#181d60",
  "rgb": {
    "r": 24,
    "g": 29,
    "b": 96
  },
  "hsl": {
    "h": 235.833,
    "s": 60,
    "l": 23.529
  },
  "oklch": {
    "l": 0.27694,
    "c": 0.11685,
    "h": 272.7
  },
  "luminance": 0.01917
}

Semantic roles & 50–950 ramp

primary

#181D60

secondary

#96903D

accent

#D845E3

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#05030C

muted

#7A787D

Preview Lab

Preview with #181D60

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

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