#1C3E99#1C3E99

#1C3E99 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.0% C 0.154 H 264.6°. Best body text is #FFFFFF at 9.55:1 contrast (WCAG AA passes).

Color values

HEX	#1C3E99
RGB	rgb(28, 62, 153)
HSL	hsl(224, 69%, 35%)
HSV	hsv(224, 82%, 60%)
CMYK	cmyk(81.7%, 59.5%, 0%, 40%)
CIE-LAB	lab(29.39, 23.01, -53.13)
CIE-LCH	lch(29.39, 57.90, 293.42°)
OKLab	oklab(39.98% -0.0144 -0.1535)
OKLCH	oklch(39.98% 0.154 264.6)
XYZ	xyz(7.9492, 5.9911, 30.8683)
Luminance	0.0599 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3E99 #99771C

analogous

#1C7C99 #1C3E99 #381C99

triadic

#1C3E99 #991C3E #3E991C

tetradic

#1C3E99 #991C7C #99771C #1C9938

square

#1C3E99 #991C7C #99771C #1C9938

split-complementary

#1C3E99 #99381C #7C991C

monochromatic

#091432 #132965 #1C3E99 #2553CD #5077DF

Accessibility & contrast

On white

9.55

#1C3E99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#1C3E99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3E99

9.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3E99	#FFFFFF	#000000	##FFFFFF
##1C3E99	1.00	9.55	2.20	9.55
#FFFFFF	9.55	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004B9C

Deuteranopia (green-blind)

#004097

Tritanopia (blue-blind)

#005565

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1c3e99;
/* rgb */ color: rgb(28, 62, 153);
/* oklch */ color: oklch(40.0% 0.154 264.6);

Tailwind

colors: {
  custom: {
    50: '#6e72b8',
    500: '#1c3e99',
    950: '#000000',
  },
}

SCSS

$custom: #1c3e99;
$custom-light: #6e72b8;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3e99",
  "rgb": {
    "r": 28,
    "g": 62,
    "b": 153
  },
  "hsl": {
    "h": 223.68,
    "s": 69.061,
    "l": 35.49
  },
  "oklch": {
    "l": 0.39975,
    "c": 0.15421,
    "h": 264.6
  },
  "luminance": 0.05992
}

Semantic roles & 50–950 ramp

primary

#1C3E99

secondary

#C2A34F

accent

#BC3CEC

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1C3E99

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

Preview Lab → · Contrast checker → · Palette generator →