#1C4282#1C4282

#1C4282 is a dark, moderate blue. Relative luminance 0.058; OKLCH L 39.0% C 0.116 H 260.2°. Best body text is #FFFFFF at 9.76:1 contrast (WCAG AA passes).

Color values

HEX	#1C4282
RGB	rgb(28, 66, 130)
HSL	hsl(218, 65%, 31%)
HSV	hsv(218, 78%, 51%)
CMYK	cmyk(78.5%, 49.2%, 0%, 49%)
CIE-LAB	lab(28.78, 10.96, -39.94)
CIE-LCH	lch(28.78, 41.42, 285.35°)
OKLab	oklab(38.96% -0.0198 -0.1147)
OKLCH	oklch(38.96% 0.116 260.2)
XYZ	xyz(6.4549, 5.7543, 21.8853)
Luminance	0.0575 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4282 #825C1C

analogous

#1C7582 #1C4282 #291C82

triadic

#1C4282 #821C42 #42821C

tetradic

#1C4282 #821C75 #825C1C #1C8229

square

#1C4282 #821C75 #825C1C #1C8229

split-complementary

#1C4282 #82291C #75821C

monochromatic

#060F1D #112850 #1C4282 #275CB4 #4279D6

Accessibility & contrast

On white

9.76

#1C4282 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#1C4282 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4282

9.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4282	#FFFFFF	#000000	##FFFFFF
##1C4282	1.00	9.76	2.15	9.76
#FFFFFF	9.76	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F4984

Deuteranopia (green-blind)

#013F81

Tritanopia (blue-blind)

#00515B

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1c4282;
/* rgb */ color: rgb(28, 66, 130);
/* oklch */ color: oklch(39.0% 0.116 260.2);

Tailwind

colors: {
  custom: {
    50: '#6875a7',
    500: '#1c4282',
    950: '#000000',
  },
}

SCSS

$custom: #1c4282;
$custom-light: #6875a7;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4282",
  "rgb": {
    "r": 28,
    "g": 66,
    "b": 130
  },
  "hsl": {
    "h": 217.647,
    "s": 64.557,
    "l": 30.98
  },
  "oklch": {
    "l": 0.38958,
    "c": 0.11639,
    "h": 260.2
  },
  "luminance": 0.05755
}

Semantic roles & 50–950 ramp

primary

#1C4282

secondary

#B58B44

accent

#A940E8

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1C4282

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

Preview Lab → · Contrast checker → · Palette generator →