#1C278D#1C278D

#1C278D is a dark, vivid blue. Relative luminance 0.036; OKLCH L 34.5% C 0.166 H 269.7°. Best body text is #FFFFFF at 12.18:1 contrast (WCAG AA passes).

Color values

HEX	#1C278D
RGB	rgb(28, 39, 141)
HSL	hsl(234, 67%, 33%)
HSV	hsv(234, 80%, 55%)
CMYK	cmyk(80.1%, 72.3%, 0%, 44.7%)
CIE-LAB	lab(22.37, 33.80, -57.24)
CIE-LCH	lch(22.37, 66.47, 300.56°)
OKLab	oklab(34.47% -0.0009 -0.1658)
OKLCH	oklch(34.47% 0.166 269.7)
XYZ	xyz(6.0105, 3.6203, 25.5762)
Luminance	0.0362 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C278D #8D821C

analogous

#1C5F8D #1C278D #491C8D

triadic

#1C278D #8D1C27 #278D1C

tetradic

#1C278D #8D1C5F #8D821C #1C8D49

square

#1C278D #8D1C5F #8D821C #1C8D49

split-complementary

#1C278D #8D491C #5F8D1C

monochromatic

#080B27 #12195A #1C278D #2635C0 #4957DB

Accessibility & contrast

On white

12.18

#1C278D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#1C278D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C278D

12.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C278D	#FFFFFF	#000000	##FFFFFF
##1C278D	1.00	12.18	1.72	12.18
#FFFFFF	12.18	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B90

Deuteranopia (green-blind)

#00308B

Tritanopia (blue-blind)

#004457

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1c278d;
/* rgb */ color: rgb(28, 39, 141);
/* oklch */ color: oklch(34.5% 0.166 269.7);

Tailwind

colors: {
  custom: {
    50: '#6d61af',
    500: '#1c278d',
    950: '#000000',
  },
}

SCSS

$custom: #1c278d;
$custom-light: #6d61af;
$custom-dark: #000000;

JSON

{
  "hex": "#1c278d",
  "rgb": {
    "r": 28,
    "g": 39,
    "b": 141
  },
  "hsl": {
    "h": 234.159,
    "s": 66.864,
    "l": 33.137
  },
  "oklch": {
    "l": 0.34468,
    "c": 0.16577,
    "h": 269.7
  },
  "luminance": 0.03621
}

Semantic roles & 50–950 ramp

primary

#1C278D

secondary

#BDB148

accent

#D93EEA

background

#F7F5FA

surface

#EDEAF5

border

#C8C6CF

text

#080511

muted

#7B7980

Preview Lab

Preview with #1C278D

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

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