#1C4489#1C4489

#1C4489 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.0% C 0.124 H 260.5°. Best body text is #FFFFFF at 9.39:1 contrast (WCAG AA passes).

Color values

HEX	#1C4489
RGB	rgb(28, 68, 137)
HSL	hsl(218, 66%, 32%)
HSV	hsv(218, 80%, 54%)
CMYK	cmyk(79.6%, 50.4%, 0%, 46.3%)
CIE-LAB	lab(29.88, 12.43, -42.52)
CIE-LCH	lch(29.88, 44.30, 286.29°)
OKLab	oklab(39.96% -0.0204 -0.1222)
OKLCH	oklch(39.96% 0.124 260.5)
XYZ	xyz(7.0597, 6.1864, 24.4841)
Luminance	0.0619 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4489 #89611C

analogous

#1C7A89 #1C4489 #2B1C89

triadic

#1C4489 #891C44 #44891C

tetradic

#1C4489 #891C7A #89611C #1C892B

square

#1C4489 #891C7A #89611C #1C892B

split-complementary

#1C4489 #892B1C #7A891C

monochromatic

#071223 #122B56 #1C4489 #265DBC #467CD9

Accessibility & contrast

On white

9.39

#1C4489 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#1C4489 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4489

9.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4489	#FFFFFF	#000000	##FFFFFF
##1C4489	1.00	9.39	2.24	9.39
#FFFFFF	9.39	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C4C8C

Deuteranopia (green-blind)

#004288

Tritanopia (blue-blind)

#005560

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #1c4489;
/* rgb */ color: rgb(28, 68, 137);
/* oklch */ color: oklch(40.0% 0.124 260.5);

Tailwind

colors: {
  custom: {
    50: '#6a77ac',
    500: '#1c4489',
    950: '#000000',
  },
}

SCSS

$custom: #1c4489;
$custom-light: #6a77ac;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4489",
  "rgb": {
    "r": 28,
    "g": 68,
    "b": 137
  },
  "hsl": {
    "h": 217.982,
    "s": 66.061,
    "l": 32.353
  },
  "oklch": {
    "l": 0.39955,
    "c": 0.12392,
    "h": 260.5
  },
  "luminance": 0.06187
}

Semantic roles & 50–950 ramp

primary

#1C4489

secondary

#BB9046

accent

#AB3FE9

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #1C4489

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

Preview Lab → · Contrast checker → · Palette generator →