#1C1978#1C1978

#1C1978 is a dark, vivid blue. Relative luminance 0.023; OKLCH L 29.9% C 0.153 H 273.4°. Best body text is #FFFFFF at 14.39:1 contrast (WCAG AA passes).

Color values

HEX	#1C1978
RGB	rgb(28, 25, 120)
HSL	hsl(242, 66%, 28%)
HSV	hsv(242, 79%, 47%)
CMYK	cmyk(76.7%, 79.2%, 0%, 52.9%)
CIE-LAB	lab(16.98, 34.84, -52.88)
CIE-LCH	lch(16.98, 63.33, 303.38°)
OKLab	oklab(29.93% 0.0091 -0.153)
OKLCH	oklch(29.93% 0.153 273.4)
XYZ	xyz(4.2156, 2.2978, 17.9870)
Luminance	0.0230 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C1978 #757819

analogous

#194578 #1C1978 #4B1978

triadic

#1C1978 #781C19 #19781C

tetradic

#1C1978 #781945 #757819 #19784B

square

#1C1978 #781945 #757819 #19784B

split-complementary

#1C1978 #784B19 #457819

monochromatic

#060519 #100E45 #1C1978 #2824AB #3B36D5

Accessibility & contrast

On white

14.39

#1C1978 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#1C1978 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C1978

14.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C1978	#FFFFFF	#000000	##FFFFFF
##1C1978	1.00	14.39	1.46	14.39
#FFFFFF	14.39	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E7B

Deuteranopia (green-blind)

#002576

Tritanopia (blue-blind)

#003547

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #1c1978;
/* rgb */ color: rgb(28, 25, 120);
/* oklch */ color: oklch(29.9% 0.153 273.4);

Tailwind

colors: {
  custom: {
    50: '#6957a0',
    500: '#1c1978',
    950: '#000000',
  },
}

SCSS

$custom: #1c1978;
$custom-light: #6957a0;
$custom-dark: #000000;

JSON

{
  "hex": "#1c1978",
  "rgb": {
    "r": 28,
    "g": 25,
    "b": 120
  },
  "hsl": {
    "h": 241.895,
    "s": 65.517,
    "l": 28.431
  },
  "oklch": {
    "l": 0.2993,
    "c": 0.15327,
    "h": 273.4
  },
  "luminance": 0.02298
}

Semantic roles & 50–950 ramp

primary

#1C1978

secondary

#A9AD40

accent

#E83FE3

background

#F6F5FA

surface

#ECE9F3

border

#C7C5CD

text

#07030F

muted

#7A787F

Preview Lab

Preview with #1C1978

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

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