#1C2B8A#1C2B8A

#1C2B8A is a dark, vivid blue. Relative luminance 0.038; OKLCH L 34.8% C 0.157 H 269.0°. Best body text is #FFFFFF at 11.92:1 contrast (WCAG AA passes).

Color values

HEX	#1C2B8A
RGB	rgb(28, 43, 138)
HSL	hsl(232, 66%, 33%)
HSV	hsv(232, 80%, 54%)
CMYK	cmyk(79.7%, 68.8%, 0%, 45.9%)
CIE-LAB	lab(23.03, 30.06, -54.29)
CIE-LCH	lch(23.03, 62.06, 298.97°)
OKLab	oklab(34.85% -0.0027 -0.1572)
OKLCH	oklch(34.85% 0.157 269)
XYZ	xyz(5.9286, 3.8089, 24.4626)
Luminance	0.0381 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2B8A #8A7B1C

analogous

#1C628A #1C2B8A #441C8A

triadic

#1C2B8A #8A1C2B #2B8A1C

tetradic

#1C2B8A #8A1C62 #8A7B1C #1C8A44

square

#1C2B8A #8A1C62 #8A7B1C #1C8A44

split-complementary

#1C2B8A #8A441C #628A1C

monochromatic

#070B24 #121B57 #1C2B8A #263BBD #475BDA

Accessibility & contrast

On white

11.92

#1C2B8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#1C2B8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2B8A

11.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2B8A	#FFFFFF	#000000	##FFFFFF
##1C2B8A	1.00	11.92	1.76	11.92
#FFFFFF	11.92	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C8D

Deuteranopia (green-blind)

#003288

Tritanopia (blue-blind)

#004556

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1c2b8a;
/* rgb */ color: rgb(28, 43, 138);
/* oklch */ color: oklch(34.8% 0.157 269.0);

Tailwind

colors: {
  custom: {
    50: '#6c64ad',
    500: '#1c2b8a',
    950: '#000000',
  },
}

SCSS

$custom: #1c2b8a;
$custom-light: #6c64ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2b8a",
  "rgb": {
    "r": 28,
    "g": 43,
    "b": 138
  },
  "hsl": {
    "h": 231.818,
    "s": 66.265,
    "l": 32.549
  },
  "oklch": {
    "l": 0.3485,
    "c": 0.15719,
    "h": 269
  },
  "luminance": 0.0381
}

Semantic roles & 50–950 ramp

primary

#1C2B8A

secondary

#BBAB46

accent

#D23FE9

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080510

muted

#7B7A7F

Preview Lab

Preview with #1C2B8A

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

Preview Lab → · Contrast checker → · Palette generator →