#1C3E8D#1C3E8D

#1C3E8D is a dark, vivid blue. Relative luminance 0.056; OKLCH L 38.9% C 0.137 H 263.7°. Best body text is #FFFFFF at 9.89:1 contrast (WCAG AA passes).

Color values

HEX	#1C3E8D
RGB	rgb(28, 62, 141)
HSL	hsl(222, 67%, 33%)
HSV	hsv(222, 80%, 55%)
CMYK	cmyk(80.1%, 56%, 0%, 44.7%)
CIE-LAB	lab(28.42, 18.20, -47.35)
CIE-LCH	lch(28.42, 50.73, 291.03°)
OKLab	oklab(38.94% -0.0151 -0.1366)
OKLCH	oklch(38.94% 0.137 263.7)
XYZ	xyz(7.0075, 5.6144, 25.9085)
Luminance	0.0561 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3E8D #8D6B1C

analogous

#1C768D #1C3E8D #321C8D

triadic

#1C3E8D #8D1C3E #3E8D1C

tetradic

#1C3E8D #8D1C76 #8D6B1C #1C8D32

square

#1C3E8D #8D1C76 #8D6B1C #1C8D32

split-complementary

#1C3E8D #8D321C #768D1C

monochromatic

#081127 #12285A #1C3E8D #2654C0 #4975DB

Accessibility & contrast

On white

9.89

#1C3E8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#1C3E8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3E8D

9.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3E8D	#FFFFFF	#000000	##FFFFFF
##1C3E8D	1.00	9.89	2.12	9.89
#FFFFFF	9.89	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004890

Deuteranopia (green-blind)

#003E8B

Tritanopia (blue-blind)

#00515F

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1c3e8d;
/* rgb */ color: rgb(28, 62, 141);
/* oklch */ color: oklch(38.9% 0.137 263.7);

Tailwind

colors: {
  custom: {
    50: '#6b72af',
    500: '#1c3e8d',
    950: '#000000',
  },
}

SCSS

$custom: #1c3e8d;
$custom-light: #6b72af;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3e8d",
  "rgb": {
    "r": 28,
    "g": 62,
    "b": 141
  },
  "hsl": {
    "h": 221.947,
    "s": 66.864,
    "l": 33.137
  },
  "oklch": {
    "l": 0.38938,
    "c": 0.13741,
    "h": 263.7
  },
  "luminance": 0.05615
}

Semantic roles & 50–950 ramp

primary

#1C3E8D

secondary

#BD9A48

accent

#B63EEA

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#080810

muted

#7A7B7F

Preview Lab

Preview with #1C3E8D

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

Preview Lab → · Contrast checker → · Palette generator →