#1C2374#1C2374

#1C2374 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.1% C 0.137 H 271.7°. Best body text is #FFFFFF at 13.62:1 contrast (WCAG AA passes).

Color values

HEX	#1C2374
RGB	rgb(28, 35, 116)
HSL	hsl(235, 61%, 28%)
HSV	hsv(235, 76%, 45%)
CMYK	cmyk(75.9%, 69.8%, 0%, 54.5%)
CIE-LAB	lab(18.84, 27.03, -47.24)
CIE-LCH	lch(18.84, 54.43, 299.78°)
OKLab	oklab(31.14% 0.0041 -0.1366)
OKLCH	oklch(31.14% 0.137 271.7)
XYZ	xyz(4.2312, 2.7095, 16.8196)
Luminance	0.0271 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2374 #746D1C

analogous

#1C4F74 #1C2374 #411C74

triadic

#1C2374 #741C23 #23741C

tetradic

#1C2374 #741C4F #746D1C #1C7441

square

#1C2374 #741C4F #746D1C #1C7441

split-complementary

#1C2374 #74411C #4F741C

monochromatic

#060719 #101443 #1C2374 #2832A5 #3B47D0

Accessibility & contrast

On white

13.62

#1C2374 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#1C2374 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2374

13.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2374	#FFFFFF	#000000	##FFFFFF
##1C2374	1.00	13.62	1.54	13.62
#FFFFFF	13.62	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003277

Deuteranopia (green-blind)

#002A72

Tritanopia (blue-blind)

#003948

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1c2374;
/* rgb */ color: rgb(28, 35, 116);
/* oklch */ color: oklch(31.1% 0.137 271.7);

Tailwind

colors: {
  custom: {
    50: '#675e9d',
    500: '#1c2374',
    950: '#000000',
  },
}

SCSS

$custom: #1c2374;
$custom-light: #675e9d;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2374",
  "rgb": {
    "r": 28,
    "g": 35,
    "b": 116
  },
  "hsl": {
    "h": 235.227,
    "s": 61.111,
    "l": 28.235
  },
  "oklch": {
    "l": 0.31135,
    "c": 0.13666,
    "h": 271.7
  },
  "luminance": 0.0271
}

Semantic roles & 50–950 ramp

primary

#1C2374

secondary

#A8A043

accent

#D744E4

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07040E

muted

#7A797E

Preview Lab

Preview with #1C2374

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

Preview Lab → · Contrast checker → · Palette generator →