#1C3281#1C3281

#1C3281 is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.3% C 0.136 H 267.1°. Best body text is #FFFFFF at 11.52:1 contrast (WCAG AA passes).

Color values

HEX	#1C3281
RGB	rgb(28, 50, 129)
HSL	hsl(227, 64%, 31%)
HSV	hsv(227, 78%, 51%)
CMYK	cmyk(78.3%, 61.2%, 0%, 49.4%)
CIE-LAB	lab(24.04, 21.75, -47.00)
CIE-LCH	lch(24.04, 51.79, 294.83°)
OKLab	oklab(35.34% -0.0069 -0.1357)
OKLCH	oklch(35.34% 0.136 267.1)
XYZ	xyz(5.5806, 4.1124, 21.2643)
Luminance	0.0411 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3281 #816B1C

analogous

#1C6481 #1C3281 #391C81

triadic

#1C3281 #811C32 #32811C

tetradic

#1C3281 #811C64 #816B1C #1C8139

square

#1C3281 #811C64 #816B1C #1C8139

split-complementary

#1C3281 #81391C #64811C

monochromatic

#060B1C #111F4F #1C3281 #2745B3 #4262D6

Accessibility & contrast

On white

11.52

#1C3281 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#1C3281 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3281

11.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3281	#FFFFFF	#000000	##FFFFFF
##1C3281	1.00	11.52	1.82	11.52
#FFFFFF	11.52	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E84

Deuteranopia (green-blind)

#00357F

Tritanopia (blue-blind)

#004654

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1c3281;
/* rgb */ color: rgb(28, 50, 129);
/* oklch */ color: oklch(35.3% 0.136 267.1);

Tailwind

colors: {
  custom: {
    50: '#6969a6',
    500: '#1c3281',
    950: '#000000',
  },
}

SCSS

$custom: #1c3281;
$custom-light: #6969a6;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3281",
  "rgb": {
    "r": 28,
    "g": 50,
    "b": 129
  },
  "hsl": {
    "h": 226.931,
    "s": 64.331,
    "l": 30.784
  },
  "oklch": {
    "l": 0.35339,
    "c": 0.13593,
    "h": 267.1
  },
  "luminance": 0.04113
}

Semantic roles & 50–950 ramp

primary

#1C3281

secondary

#B49C44

accent

#C340E7

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1C3281

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

Preview Lab → · Contrast checker → · Palette generator →