#1C1578#1C1578

#1C1578 is a dark, vivid blue. Relative luminance 0.021; OKLCH L 29.4% C 0.157 H 274.0°. Best body text is #FFFFFF at 14.71:1 contrast (WCAG AA passes).

Color values

HEX	#1C1578
RGB	rgb(28, 21, 120)
HSL	hsl(244, 70%, 28%)
HSV	hsv(244, 83%, 47%)
CMYK	cmyk(76.7%, 82.5%, 0%, 52.9%)
CIE-LAB	lab(16.20, 37.08, -54.17)
CIE-LCH	lch(16.20, 65.64, 304.39°)
OKLab	oklab(29.39% 0.0109 -0.1567)
OKLCH	oklch(29.39% 0.157 274)
XYZ	xyz(4.1361, 2.1389, 17.9605)
Luminance	0.0214 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C1578 #717815

analogous

#154078 #1C1578 #4D1578

triadic

#1C1578 #781C15 #15781C

tetradic

#1C1578 #781540 #717815 #15784D

square

#1C1578 #781540 #717815 #15784D

split-complementary

#1C1578 #784D15 #407815

monochromatic

#06051A #100C44 #1C1578 #281EAC #392DDA

Accessibility & contrast

On white

14.71

#1C1578 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#1C1578 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C1578

14.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C1578	#FFFFFF	#000000	##FFFFFF
##1C1578	1.00	14.71	1.43	14.71
#FFFFFF	14.71	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D7B

Deuteranopia (green-blind)

#002376

Tritanopia (blue-blind)

#003447

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #1c1578;
/* rgb */ color: rgb(28, 21, 120);
/* oklch */ color: oklch(29.4% 0.157 274.0);

Tailwind

colors: {
  custom: {
    50: '#6955a0',
    500: '#1c1578',
    950: '#000000',
  },
}

SCSS

$custom: #1c1578;
$custom-light: #6955a0;
$custom-dark: #000000;

JSON

{
  "hex": "#1c1578",
  "rgb": {
    "r": 28,
    "g": 21,
    "b": 120
  },
  "hsl": {
    "h": 244.242,
    "s": 70.213,
    "l": 27.647
  },
  "oklch": {
    "l": 0.29385,
    "c": 0.15707,
    "h": 274
  },
  "luminance": 0.02139
}

Semantic roles & 50–950 ramp

primary

#1C1578

secondary

#A6AE3B

accent

#ED3BE0

background

#F6F5FA

surface

#ECE9F3

border

#C7C5CD

text

#07030F

muted

#7A787F

Preview Lab

Preview with #1C1578

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

Preview Lab → · Contrast checker → · Palette generator →