#1C3288#1C3288

#1C3288 is a dark, vivid blue. Relative luminance 0.043; OKLCH L 36.0% C 0.146 H 267.3°. Best body text is #FFFFFF at 11.28:1 contrast (WCAG AA passes).

Color values

HEX	#1C3288
RGB	rgb(28, 50, 136)
HSL	hsl(228, 66%, 32%)
HSV	hsv(228, 79%, 53%)
CMYK	cmyk(79.4%, 63.2%, 0%, 46.7%)
CIE-LAB	lab(24.66, 24.53, -50.38)
CIE-LCH	lch(24.66, 56.03, 295.96°)
OKLab	oklab(35.99% -0.0069 -0.1457)
OKLCH	oklch(35.99% 0.146 267.3)
XYZ	xyz(6.0619, 4.3050, 23.7992)
Luminance	0.0431 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3288 #88721C

analogous

#1C6888 #1C3288 #3C1C88

triadic

#1C3288 #881C32 #32881C

tetradic

#1C3288 #881C68 #88721C #1C883C

square

#1C3288 #881C68 #88721C #1C883C

split-complementary

#1C3288 #883C1C #68881C

monochromatic

#070D22 #121F55 #1C3288 #2645BB #4664D9

Accessibility & contrast

On white

11.28

#1C3288 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#1C3288 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3288

11.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3288	#FFFFFF	#000000	##FFFFFF
##1C3288	1.00	11.28	1.86	11.28
#FFFFFF	11.28	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00408B

Deuteranopia (green-blind)

#003686

Tritanopia (blue-blind)

#004858

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #1c3288;
/* rgb */ color: rgb(28, 50, 136);
/* oklch */ color: oklch(36.0% 0.146 267.3);

Tailwind

colors: {
  custom: {
    50: '#6b69ab',
    500: '#1c3288',
    950: '#000000',
  },
}

SCSS

$custom: #1c3288;
$custom-light: #6b69ab;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3288",
  "rgb": {
    "r": 28,
    "g": 50,
    "b": 136
  },
  "hsl": {
    "h": 227.778,
    "s": 65.854,
    "l": 32.157
  },
  "oklch": {
    "l": 0.35988,
    "c": 0.14582,
    "h": 267.3
  },
  "luminance": 0.04306
}

Semantic roles & 50–950 ramp

primary

#1C3288

secondary

#BAA345

accent

#C63FE9

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080610

muted

#7A7A7F

Preview Lab

Preview with #1C3288

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

Preview Lab → · Contrast checker → · Palette generator →