#181C85#181C85

#181C85 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.7% C 0.168 H 270.2°. Best body text is #FFFFFF at 13.60:1 contrast (WCAG AA passes).

Color values

HEX	#181C85
RGB	rgb(24, 28, 133)
HSL	hsl(238, 69%, 31%)
HSV	hsv(238, 82%, 52%)
CMYK	cmyk(82%, 78.9%, 0%, 47.8%)
CIE-LAB	lab(18.88, 37.32, -58.02)
CIE-LCH	lch(18.88, 68.98, 302.75°)
OKLab	oklab(31.65% 0.0005 -0.168)
OKLCH	oklch(31.65% 0.168 270.2)
XYZ	xyz(5.0241, 2.7176, 22.4455)
Luminance	0.0272 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181C85 #858118

analogous

#185285 #181C85 #4A1885

triadic

#181C85 #85181C #1C8518

tetradic

#181C85 #851852 #858118 #18854A

square

#181C85 #851852 #858118 #18854A

split-complementary

#181C85 #854A18 #528518

monochromatic

#05061D #0F1151 #181C85 #2127B9 #3C42DC

Accessibility & contrast

On white

13.60

#181C85 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#181C85 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181C85

13.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181C85	#FFFFFF	#000000	##FFFFFF
##181C85	1.00	13.60	1.54	13.60
#FFFFFF	13.60	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003388

Deuteranopia (green-blind)

#002883

Tritanopia (blue-blind)

#003C50

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #181c85;
/* rgb */ color: rgb(24, 28, 133);
/* oklch */ color: oklch(31.7% 0.168 270.2);

Tailwind

colors: {
  custom: {
    50: '#6b5aaa',
    500: '#181c85',
    950: '#000000',
  },
}

SCSS

$custom: #181c85;
$custom-light: #6b5aaa;
$custom-dark: #000000;

JSON

{
  "hex": "#181c85",
  "rgb": {
    "r": 24,
    "g": 28,
    "b": 133
  },
  "hsl": {
    "h": 237.798,
    "s": 69.427,
    "l": 30.784
  },
  "oklch": {
    "l": 0.31652,
    "c": 0.16803,
    "h": 270.2
  },
  "luminance": 0.02718
}

Semantic roles & 50–950 ramp

primary

#181C85

secondary

#B9B440

accent

#E63CEC

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #181C85

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

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