#1C1577#1C1577

#1C1577 is a dark, vivid blue. Relative luminance 0.021; OKLCH L 29.3% C 0.156 H 274.1°. Best body text is #FFFFFF at 14.76:1 contrast (WCAG AA passes).

Color values

HEX	#1C1577
RGB	rgb(28, 21, 119)
HSL	hsl(244, 70%, 27%)
HSV	hsv(244, 82%, 47%)
CMYK	cmyk(76.5%, 82.4%, 0%, 53.3%)
CIE-LAB	lab(16.08, 36.74, -53.73)
CIE-LCH	lch(16.08, 65.09, 304.37°)
OKLab	oklab(29.26% 0.0111 -0.1554)
OKLCH	oklch(29.26% 0.156 274.1)
XYZ	xyz(4.0757, 2.1147, 17.6426)
Luminance	0.0211 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C1577 #707715

analogous

#153F77 #1C1577 #4D1577

triadic

#1C1577 #771C15 #15771C

tetradic

#1C1577 #77153F #707715 #15774D

square

#1C1577 #77153F #707715 #15774D

split-complementary

#1C1577 #774D15 #3F7715

monochromatic

#06051A #100C43 #1C1577 #281EAB #392DDA

Accessibility & contrast

On white

14.76

#1C1577 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.42

#1C1577 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C1577

14.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C1577	#FFFFFF	#000000	##FFFFFF
##1C1577	1.00	14.76	1.42	14.76
#FFFFFF	14.76	1.00	21.00	1.00
#000000	1.42	21.00	1.00	21.00
##FFFFFF	14.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C7A

Deuteranopia (green-blind)

#002375

Tritanopia (blue-blind)

#003346

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #1c1577;
/* rgb */ color: rgb(28, 21, 119);
/* oklch */ color: oklch(29.3% 0.156 274.1);

Tailwind

colors: {
  custom: {
    50: '#69559f',
    500: '#1c1577',
    950: '#000000',
  },
}

SCSS

$custom: #1c1577;
$custom-light: #69559f;
$custom-dark: #000000;

JSON

{
  "hex": "#1c1577",
  "rgb": {
    "r": 28,
    "g": 21,
    "b": 119
  },
  "hsl": {
    "h": 244.286,
    "s": 70,
    "l": 27.451
  },
  "oklch": {
    "l": 0.29264,
    "c": 0.15581,
    "h": 274.1
  },
  "luminance": 0.02115
}

Semantic roles & 50–950 ramp

primary

#1C1577

secondary

#A5AD3B

accent

#ED3BE0

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07030F

muted

#7A787E

Preview Lab

Preview with #1C1577

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

Preview Lab → · Contrast checker → · Palette generator →