#1C278C#1C278C

#1C278C is a dark, vivid blue. Relative luminance 0.036; OKLCH L 34.4% C 0.164 H 269.7°. Best body text is #FFFFFF at 12.22:1 contrast (WCAG AA passes).

Color values

HEX	#1C278C
RGB	rgb(28, 39, 140)
HSL	hsl(234, 67%, 33%)
HSV	hsv(234, 80%, 55%)
CMYK	cmyk(80%, 72.1%, 0%, 45.1%)
CIE-LAB	lab(22.27, 33.43, -56.79)
CIE-LCH	lch(22.27, 65.90, 300.48°)
OKLab	oklab(34.36% -0.0008 -0.1645)
OKLCH	oklch(34.36% 0.164 269.7)
XYZ	xyz(5.9364, 3.5907, 25.1861)
Luminance	0.0359 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C278C #8C811C

analogous

#1C5F8C #1C278C #491C8C

triadic

#1C278C #8C1C27 #278C1C

tetradic

#1C278C #8C1C5F #8C811C #1C8C49

square

#1C278C #8C1C5F #8C811C #1C8C49

split-complementary

#1C278C #8C491C #5F8C1C

monochromatic

#080B26 #121959 #1C278C #2635BF #4856DA

Accessibility & contrast

On white

12.22

#1C278C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#1C278C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C278C

12.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C278C	#FFFFFF	#000000	##FFFFFF
##1C278C	1.00	12.22	1.72	12.22
#FFFFFF	12.22	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B8F

Deuteranopia (green-blind)

#00308A

Tritanopia (blue-blind)

#004356

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1c278c;
/* rgb */ color: rgb(28, 39, 140);
/* oklch */ color: oklch(34.4% 0.164 269.7);

Tailwind

colors: {
  custom: {
    50: '#6d61af',
    500: '#1c278c',
    950: '#000000',
  },
}

SCSS

$custom: #1c278c;
$custom-light: #6d61af;
$custom-dark: #000000;

JSON

{
  "hex": "#1c278c",
  "rgb": {
    "r": 28,
    "g": 39,
    "b": 140
  },
  "hsl": {
    "h": 234.107,
    "s": 66.667,
    "l": 32.941
  },
  "oklch": {
    "l": 0.34361,
    "c": 0.16446,
    "h": 269.7
  },
  "luminance": 0.03591
}

Semantic roles & 50–950 ramp

primary

#1C278C

secondary

#BCB148

accent

#D93EEA

background

#F7F5FA

surface

#EDEAF5

border

#C8C6CF

text

#080510

muted

#7B797F

Preview Lab

Preview with #1C278C

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

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