#1C3166#1C3166

#1C3166 is a dark, moderate blue. Relative luminance 0.034; OKLCH L 32.8% C 0.097 H 265.2°. Best body text is #FFFFFF at 12.50:1 contrast (WCAG AA passes).

Color values

HEX	#1C3166
RGB	rgb(28, 49, 102)
HSL	hsl(223, 57%, 25%)
HSV	hsv(223, 73%, 40%)
CMYK	cmyk(72.5%, 52%, 0%, 60%)
CIE-LAB	lab(21.59, 11.53, -33.71)
CIE-LCH	lch(21.59, 35.63, 288.88°)
OKLab	oklab(32.81% -0.0081 -0.0967)
OKLCH	oklch(32.81% 0.097 265.2)
XYZ	xyz(3.9746, 3.4024, 13.0151)
Luminance	0.0340 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3166 #66511C

analogous

#1C5666 #1C3166 #2C1C66

triadic

#1C3166 #661C31 #31661C

tetradic

#1C3166 #661C56 #66511C #1C662C

square

#1C3166 #661C56 #66511C #1C662C

split-complementary

#1C3166 #662C1C #56661C

monochromatic

#070C18 #0F1A36 #1C3166 #294896 #365FC6

Accessibility & contrast

On white

12.50

#1C3166 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#1C3166 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3166

12.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3166	#FFFFFF	#000000	##FFFFFF
##1C3166	1.00	12.50	1.68	12.50
#FFFFFF	12.50	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#143768

Deuteranopia (green-blind)

#013165

Tritanopia (blue-blind)

#003D46

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1c3166;
/* rgb */ color: rgb(28, 49, 102);
/* oklch */ color: oklch(32.8% 0.097 265.2);

Tailwind

colors: {
  custom: {
    50: '#626892',
    500: '#1c3166',
    950: '#000000',
  },
}

SCSS

$custom: #1c3166;
$custom-light: #626892;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3166",
  "rgb": {
    "r": 28,
    "g": 49,
    "b": 102
  },
  "hsl": {
    "h": 222.973,
    "s": 56.923,
    "l": 25.49
  },
  "oklch": {
    "l": 0.32809,
    "c": 0.09702,
    "h": 265.2
  },
  "luminance": 0.03403
}

Semantic roles & 50–950 ramp

primary

#1C3166

secondary

#9B8243

accent

#B548E0

background

#F6F6F9

surface

#EBEBF1

border

#C6C6CB

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #1C3166

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

Preview Lab → · Contrast checker → · Palette generator →