#1C2E83#1C2E83

#1C2E83 is a dark, vivid blue. Relative luminance 0.038; OKLCH L 34.7% C 0.144 H 268.4°. Best body text is #FFFFFF at 11.88:1 contrast (WCAG AA passes).

Color values

HEX	#1C2E83
RGB	rgb(28, 46, 131)
HSL	hsl(230, 65%, 31%)
HSV	hsv(230, 79%, 51%)
CMYK	cmyk(78.6%, 64.9%, 0%, 48.6%)
CIE-LAB	lab(23.13, 25.32, -49.74)
CIE-LCH	lch(23.13, 55.82, 296.98°)
OKLab	oklab(34.72% -0.0041 -0.1438)
OKLCH	oklch(34.72% 0.144 268.4)
XYZ	xyz(5.5512, 3.8389, 21.9168)
Luminance	0.0384 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2E83 #83711C

analogous

#1C6183 #1C2E83 #3D1C83

triadic

#1C2E83 #831C2E #2E831C

tetradic

#1C2E83 #831C61 #83711C #1C833D

square

#1C2E83 #831C61 #83711C #1C833D

split-complementary

#1C2E83 #833D1C #61831C

monochromatic

#060B1E #111C51 #1C2E83 #2740B5 #435DD7

Accessibility & contrast

On white

11.88

#1C2E83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#1C2E83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2E83

11.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2E83	#FFFFFF	#000000	##FFFFFF
##1C2E83	1.00	11.88	1.77	11.88
#FFFFFF	11.88	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C86

Deuteranopia (green-blind)

#003281

Tritanopia (blue-blind)

#004454

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1c2e83;
/* rgb */ color: rgb(28, 46, 131);
/* oklch */ color: oklch(34.7% 0.144 268.4);

Tailwind

colors: {
  custom: {
    50: '#6a66a8',
    500: '#1c2e83',
    950: '#000000',
  },
}

SCSS

$custom: #1c2e83;
$custom-light: #6a66a8;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2e83",
  "rgb": {
    "r": 28,
    "g": 46,
    "b": 131
  },
  "hsl": {
    "h": 229.515,
    "s": 64.78,
    "l": 31.176
  },
  "oklch": {
    "l": 0.34721,
    "c": 0.14389,
    "h": 268.4
  },
  "luminance": 0.0384
}

Semantic roles & 50–950 ramp

primary

#1C2E83

secondary

#B6A245

accent

#CA40E8

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070610

muted

#7A7A7F

Preview Lab

Preview with #1C2E83

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

Preview Lab → · Contrast checker → · Palette generator →