#1C2979#1C2979

#1C2979 is a dark, vivid blue. Relative luminance 0.032; OKLCH L 32.8% C 0.136 H 269.8°. Best body text is #FFFFFF at 12.78:1 contrast (WCAG AA passes).

Color values

HEX	#1C2979
RGB	rgb(28, 41, 121)
HSL	hsl(232, 62%, 29%)
HSV	hsv(232, 77%, 47%)
CMYK	cmyk(76.9%, 66.1%, 0%, 52.5%)
CIE-LAB	lab(20.88, 24.86, -47.11)
CIE-LCH	lch(20.88, 53.26, 297.82°)
OKLab	oklab(32.77% -0.0004 -0.1362)
OKLCH	oklch(32.77% 0.136 269.8)
XYZ	xyz(4.7218, 3.2127, 18.4567)
Luminance	0.0321 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2979 #796C1C

analogous

#1C5879 #1C2979 #3E1C79

triadic

#1C2979 #791C29 #29791C

tetradic

#1C2979 #791C58 #796C1C #1C793E

square

#1C2979 #791C58 #796C1C #1C793E

split-complementary

#1C2979 #793E1C #58791C

monochromatic

#060819 #101847 #1C2979 #283AAB #3D52D2

Accessibility & contrast

On white

12.78

#1C2979 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#1C2979 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2979

12.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2979	#FFFFFF	#000000	##FFFFFF
##1C2979	1.00	12.78	1.64	12.78
#FFFFFF	12.78	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00377C

Deuteranopia (green-blind)

#002E77

Tritanopia (blue-blind)

#003E4D

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #1c2979;
/* rgb */ color: rgb(28, 41, 121);
/* oklch */ color: oklch(32.8% 0.136 269.8);

Tailwind

colors: {
  custom: {
    50: '#6862a0',
    500: '#1c2979',
    950: '#000000',
  },
}

SCSS

$custom: #1c2979;
$custom-light: #6862a0;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2979",
  "rgb": {
    "r": 28,
    "g": 41,
    "b": 121
  },
  "hsl": {
    "h": 231.613,
    "s": 62.416,
    "l": 29.216
  },
  "oklch": {
    "l": 0.32773,
    "c": 0.13616,
    "h": 269.8
  },
  "luminance": 0.03213
}

Semantic roles & 50–950 ramp

primary

#1C2979

secondary

#AD9E44

accent

#CF42E5

background

#F6F5FA

surface

#EBEAF3

border

#C6C6CD

text

#07050F

muted

#7A797F

Preview Lab

Preview with #1C2979

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

Preview Lab → · Contrast checker → · Palette generator →