#1C3D84#1C3D84

#1C3D84 is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.0% C 0.126 H 263.0°. Best body text is #FFFFFF at 10.24:1 contrast (WCAG AA passes).

Color values

HEX	#1C3D84
RGB	rgb(28, 61, 132)
HSL	hsl(221, 65%, 31%)
HSV	hsv(221, 79%, 52%)
CMYK	cmyk(78.8%, 53.8%, 0%, 48.2%)
CIE-LAB	lab(27.43, 15.25, -43.37)
CIE-LCH	lch(27.43, 45.97, 289.38°)
OKLab	oklab(37.97% -0.0153 -0.1249)
OKLCH	oklch(37.97% 0.126 263)
XYZ	xyz(6.3110, 5.2496, 22.5060)
Luminance	0.0525 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3D84 #84631C

analogous

#1C7184 #1C3D84 #2F1C84

triadic

#1C3D84 #841C3D #3D841C

tetradic

#1C3D84 #841C71 #84631C #1C842F

square

#1C3D84 #841C71 #84631C #1C842F

split-complementary

#1C3D84 #842F1C #71841C

monochromatic

#070E1F #112652 #1C3D84 #2754B6 #4372D7

Accessibility & contrast

On white

10.24

#1C3D84 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#1C3D84 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3D84

10.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3D84	#FFFFFF	#000000	##FFFFFF
##1C3D84	1.00	10.24	2.05	10.24
#FFFFFF	10.24	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C4687

Deuteranopia (green-blind)

#003C83

Tritanopia (blue-blind)

#004E5A

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1c3d84;
/* rgb */ color: rgb(28, 61, 132);
/* oklch */ color: oklch(38.0% 0.126 263.0);

Tailwind

colors: {
  custom: {
    50: '#6971a8',
    500: '#1c3d84',
    950: '#000000',
  },
}

SCSS

$custom: #1c3d84;
$custom-light: #6971a8;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3d84",
  "rgb": {
    "r": 28,
    "g": 61,
    "b": 132
  },
  "hsl": {
    "h": 220.962,
    "s": 65,
    "l": 31.373
  },
  "oklch": {
    "l": 0.37973,
    "c": 0.12579,
    "h": 263
  },
  "luminance": 0.0525
}

Semantic roles & 50–950 ramp

primary

#1C3D84

secondary

#B79345

accent

#B340E8

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #1C3D84

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

Preview Lab → · Contrast checker → · Palette generator →