#1C2D8A#1C2D8A

#1C2D8A is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.2% C 0.155 H 268.6°. Best body text is #FFFFFF at 11.72:1 contrast (WCAG AA passes).

Color values

HEX	#1C2D8A
RGB	rgb(28, 45, 138)
HSL	hsl(231, 66%, 33%)
HSV	hsv(231, 80%, 54%)
CMYK	cmyk(79.7%, 67.4%, 0%, 45.9%)
CIE-LAB	lab(23.53, 28.72, -53.47)
CIE-LCH	lch(23.53, 60.69, 298.25°)
OKLab	oklab(35.22% -0.0038 -0.1547)
OKLCH	oklch(35.22% 0.155 268.6)
XYZ	xyz(6.0031, 3.9580, 24.4874)
Luminance	0.0396 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2D8A #8A791C

analogous

#1C648A #1C2D8A #421C8A

triadic

#1C2D8A #8A1C2D #2D8A1C

tetradic

#1C2D8A #8A1C64 #8A791C #1C8A42

square

#1C2D8A #8A1C64 #8A791C #1C8A42

split-complementary

#1C2D8A #8A421C #648A1C

monochromatic

#070C24 #121C57 #1C2D8A #263EBD #475DDA

Accessibility & contrast

On white

11.72

#1C2D8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#1C2D8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2D8A

11.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2D8A	#FFFFFF	#000000	##FFFFFF
##1C2D8A	1.00	11.72	1.79	11.72
#FFFFFF	11.72	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D8D

Deuteranopia (green-blind)

#003388

Tritanopia (blue-blind)

#004657

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1c2d8a;
/* rgb */ color: rgb(28, 45, 138);
/* oklch */ color: oklch(35.2% 0.155 268.6);

Tailwind

colors: {
  custom: {
    50: '#6c66ad',
    500: '#1c2d8a',
    950: '#000000',
  },
}

SCSS

$custom: #1c2d8a;
$custom-light: #6c66ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2d8a",
  "rgb": {
    "r": 28,
    "g": 45,
    "b": 138
  },
  "hsl": {
    "h": 230.727,
    "s": 66.265,
    "l": 32.549
  },
  "oklch": {
    "l": 0.35217,
    "c": 0.15479,
    "h": 268.6
  },
  "luminance": 0.03959
}

Semantic roles & 50–950 ramp

primary

#1C2D8A

secondary

#BBA946

accent

#CF3FE9

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080510

muted

#7B7A7F

Preview Lab

Preview with #1C2D8A

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

Preview Lab → · Contrast checker → · Palette generator →