#1C3280#1C3280

#1C3280 is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.2% C 0.134 H 267.0°. Best body text is #FFFFFF at 11.55:1 contrast (WCAG AA passes).

Color values

HEX	#1C3280
RGB	rgb(28, 50, 128)
HSL	hsl(227, 64%, 31%)
HSV	hsv(227, 78%, 50%)
CMYK	cmyk(78.1%, 60.9%, 0%, 49.8%)
CIE-LAB	lab(23.95, 21.35, -46.51)
CIE-LCH	lch(23.95, 51.18, 294.65°)
OKLab	oklab(35.25% -0.0069 -0.1343)
OKLCH	oklch(35.25% 0.134 267)
XYZ	xyz(5.5144, 4.0860, 20.9159)
Luminance	0.0409 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3280 #806A1C

analogous

#1C6480 #1C3280 #381C80

triadic

#1C3280 #801C32 #32801C

tetradic

#1C3280 #801C64 #806A1C #1C8038

square

#1C3280 #801C64 #806A1C #1C8038

split-complementary

#1C3280 #80381C #64801C

monochromatic

#060B1C #111E4E #1C3280 #2746B2 #4162D5

Accessibility & contrast

On white

11.55

#1C3280 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#1C3280 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3280

11.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3280	#FFFFFF	#000000	##FFFFFF
##1C3280	1.00	11.55	1.82	11.55
#FFFFFF	11.55	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E83

Deuteranopia (green-blind)

#00347E

Tritanopia (blue-blind)

#004654

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1c3280;
/* rgb */ color: rgb(28, 50, 128);
/* oklch */ color: oklch(35.2% 0.134 267.0);

Tailwind

colors: {
  custom: {
    50: '#6969a6',
    500: '#1c3280',
    950: '#000000',
  },
}

SCSS

$custom: #1c3280;
$custom-light: #6969a6;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3280",
  "rgb": {
    "r": 28,
    "g": 50,
    "b": 128
  },
  "hsl": {
    "h": 226.8,
    "s": 64.103,
    "l": 30.588
  },
  "oklch": {
    "l": 0.35248,
    "c": 0.13449,
    "h": 267
  },
  "luminance": 0.04087
}

Semantic roles & 50–950 ramp

primary

#1C3280

secondary

#B39B44

accent

#C241E7

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1C3280

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

Preview Lab → · Contrast checker → · Palette generator →