#1C318E#1C318E

#1C318E is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.4% C 0.155 H 267.7°. Best body text is #FFFFFF at 11.17:1 contrast (WCAG AA passes).

Color values

HEX	#1C318E
RGB	rgb(28, 49, 142)
HSL	hsl(229, 67%, 33%)
HSV	hsv(229, 80%, 56%)
CMYK	cmyk(80.3%, 65.5%, 0%, 44.3%)
CIE-LAB	lab(24.94, 27.57, -53.64)
CIE-LCH	lch(24.94, 60.31, 297.20°)
OKLab	oklab(36.37% -0.0063 -0.1552)
OKLCH	oklch(36.37% 0.155 267.7)
XYZ	xyz(6.4580, 4.3958, 26.0940)
Luminance	0.0440 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C318E #8E791C

analogous

#1C6A8E #1C318E #401C8E

triadic

#1C318E #8E1C31 #318E1C

tetradic

#1C318E #8E1C6A #8E791C #1C8E40

square

#1C318E #8E1C6A #8E791C #1C8E40

split-complementary

#1C318E #8E401C #6A8E1C

monochromatic

#080E28 #121F5B #1C318E #2643C1 #4964DB

Accessibility & contrast

On white

11.17

#1C318E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#1C318E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C318E

11.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C318E	#FFFFFF	#000000	##FFFFFF
##1C318E	1.00	11.17	1.88	11.17
#FFFFFF	11.17	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004191

Deuteranopia (green-blind)

#00368C

Tritanopia (blue-blind)

#004A5B

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #1c318e;
/* rgb */ color: rgb(28, 49, 142);
/* oklch */ color: oklch(36.4% 0.155 267.7);

Tailwind

colors: {
  custom: {
    50: '#6d69b0',
    500: '#1c318e',
    950: '#000000',
  },
}

SCSS

$custom: #1c318e;
$custom-light: #6d69b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1c318e",
  "rgb": {
    "r": 28,
    "g": 49,
    "b": 142
  },
  "hsl": {
    "h": 228.947,
    "s": 67.059,
    "l": 33.333
  },
  "oklch": {
    "l": 0.36367,
    "c": 0.15536,
    "h": 267.7
  },
  "luminance": 0.04396
}

Semantic roles & 50–950 ramp

primary

#1C318E

secondary

#BDA849

accent

#CA3EEA

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#080611

muted

#7B7A80

Preview Lab

Preview with #1C318E

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

Preview Lab → · Contrast checker → · Palette generator →