#1C2E81#1C2E81

#1C2E81 is a dark, vivid blue. Relative luminance 0.038; OKLCH L 34.5% C 0.141 H 268.3°. Best body text is #FFFFFF at 11.95:1 contrast (WCAG AA passes).

Color values

HEX	#1C2E81
RGB	rgb(28, 46, 129)
HSL	hsl(229, 64%, 31%)
HSV	hsv(229, 78%, 51%)
CMYK	cmyk(78.3%, 64.3%, 0%, 49.4%)
CIE-LAB	lab(22.95, 24.54, -48.78)
CIE-LCH	lch(22.95, 54.61, 296.70°)
OKLab	oklab(34.53% -0.0041 -0.141)
OKLCH	oklch(34.53% 0.141 268.3)
XYZ	xyz(5.4170, 3.7853, 21.2098)
Luminance	0.0379 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2E81 #816F1C

analogous

#1C6081 #1C2E81 #3C1C81

triadic

#1C2E81 #811C2E #2E811C

tetradic

#1C2E81 #811C60 #816F1C #1C813C

square

#1C2E81 #811C60 #816F1C #1C813C

split-complementary

#1C2E81 #813C1C #60811C

monochromatic

#060A1C #111C4F #1C2E81 #2740B3 #425CD6

Accessibility & contrast

On white

11.95

#1C2E81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#1C2E81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2E81

11.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2E81	#FFFFFF	#000000	##FFFFFF
##1C2E81	1.00	11.95	1.76	11.95
#FFFFFF	11.95	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C84

Deuteranopia (green-blind)

#00327F

Tritanopia (blue-blind)

#004353

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1c2e81;
/* rgb */ color: rgb(28, 46, 129);
/* oklch */ color: oklch(34.5% 0.141 268.3);

Tailwind

colors: {
  custom: {
    50: '#6966a6',
    500: '#1c2e81',
    950: '#000000',
  },
}

SCSS

$custom: #1c2e81;
$custom-light: #6966a6;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2e81",
  "rgb": {
    "r": 28,
    "g": 46,
    "b": 129
  },
  "hsl": {
    "h": 229.307,
    "s": 64.331,
    "l": 30.784
  },
  "oklch": {
    "l": 0.34529,
    "c": 0.14109,
    "h": 268.3
  },
  "luminance": 0.03786
}

Semantic roles & 50–950 ramp

primary

#1C2E81

secondary

#B4A044

accent

#CA40E7

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1C2E81

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

Preview Lab → · Contrast checker → · Palette generator →