#1C3E89#1C3E89

#1C3E89 is a dark, vivid blue. Relative luminance 0.055; OKLCH L 38.6% C 0.132 H 263.2°. Best body text is #FFFFFF at 10.00:1 contrast (WCAG AA passes).

Color values

HEX	#1C3E89
RGB	rgb(28, 62, 137)
HSL	hsl(221, 66%, 32%)
HSV	hsv(221, 80%, 54%)
CMYK	cmyk(79.6%, 54.7%, 0%, 46.3%)
CIE-LAB	lab(28.11, 16.58, -45.38)
CIE-LCH	lch(28.11, 48.32, 290.07°)
OKLab	oklab(38.61% -0.0155 -0.1308)
OKLCH	oklch(38.61% 0.132 263.2)
XYZ	xyz(6.7153, 5.4975, 24.3693)
Luminance	0.0550 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3E89 #89671C

analogous

#1C7589 #1C3E89 #301C89

triadic

#1C3E89 #891C3E #3E891C

tetradic

#1C3E89 #891C75 #89671C #1C8930

square

#1C3E89 #891C75 #89671C #1C8930

split-complementary

#1C3E89 #89301C #75891C

monochromatic

#071023 #122756 #1C3E89 #2655BC #4674D9

Accessibility & contrast

On white

10.00

#1C3E89 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#1C3E89 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3E89

10.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3E89	#FFFFFF	#000000	##FFFFFF
##1C3E89	1.00	10.00	2.10	10.00
#FFFFFF	10.00	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#04488C

Deuteranopia (green-blind)

#003E88

Tritanopia (blue-blind)

#00505D

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1c3e89;
/* rgb */ color: rgb(28, 62, 137);
/* oklch */ color: oklch(38.6% 0.132 263.2);

Tailwind

colors: {
  custom: {
    50: '#6a72ac',
    500: '#1c3e89',
    950: '#000000',
  },
}

SCSS

$custom: #1c3e89;
$custom-light: #6a72ac;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3e89",
  "rgb": {
    "r": 28,
    "g": 62,
    "b": 137
  },
  "hsl": {
    "h": 221.284,
    "s": 66.061,
    "l": 32.353
  },
  "oklch": {
    "l": 0.38605,
    "c": 0.1317,
    "h": 263.2
  },
  "luminance": 0.05498
}

Semantic roles & 50–950 ramp

primary

#1C3E89

secondary

#BB9646

accent

#B43FE9

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #1C3E89

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

Preview Lab → · Contrast checker → · Palette generator →