#1C30A9#1C30A9

#1C30A9 is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.9% C 0.192 H 267.7°. Best body text is #FFFFFF at 10.27:1 contrast (WCAG AA passes).

Color values

HEX	#1C30A9
RGB	rgb(28, 48, 169)
HSL	hsl(231, 72%, 39%)
HSV	hsv(231, 83%, 66%)
CMYK	cmyk(83.4%, 71.6%, 0%, 33.7%)
CIE-LAB	lab(27.36, 38.38, -66.14)
CIE-LCH	lch(27.36, 76.47, 300.12°)
OKLab	oklab(38.94% -0.0077 -0.1917)
OKLCH	oklch(38.94% 0.192 267.7)
XYZ	xyz(8.6948, 5.2243, 38.0786)
Luminance	0.0522 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C30A9 #A9951C

analogous

#1C76A9 #1C30A9 #4E1CA9

triadic

#1C30A9 #A91C30 #30A91C

tetradic

#1C30A9 #A91C76 #A9951C #1CA94E

square

#1C30A9 #A91C76 #A9951C #1CA94E

split-complementary

#1C30A9 #A94E1C #76A91C

monochromatic

#0B1240 #132174 #1C30A9 #2741DB #5B6FE4

Accessibility & contrast

On white

10.27

#1C30A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#1C30A9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C30A9

10.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C30A9	#FFFFFF	#000000	##FFFFFF
##1C30A9	1.00	10.27	2.05	10.27
#FFFFFF	10.27	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048AD

Deuteranopia (green-blind)

#003AA7

Tritanopia (blue-blind)

#005269

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1c30a9;
/* rgb */ color: rgb(28, 48, 169);
/* oklch */ color: oklch(38.9% 0.192 267.7);

Tailwind

colors: {
  custom: {
    50: '#7469c4',
    500: '#1c30a9',
    950: '#000000',
  },
}

SCSS

$custom: #1c30a9;
$custom-light: #7469c4;
$custom-dark: #000000;

JSON

{
  "hex": "#1c30a9",
  "rgb": {
    "r": 28,
    "g": 48,
    "b": 169
  },
  "hsl": {
    "h": 231.489,
    "s": 71.574,
    "l": 38.627
  },
  "oklch": {
    "l": 0.38941,
    "c": 0.19186,
    "h": 267.7
  },
  "luminance": 0.05225
}

Semantic roles & 50–950 ramp

primary

#1C30A9

secondary

#C8B859

accent

#D539EE

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0613

muted

#7C7A82

Preview Lab

Preview with #1C30A9

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

Preview Lab → · Contrast checker → · Palette generator →