#1C1B85#1C1B85

#1C1B85 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.7% C 0.168 H 271.9°. Best body text is #FFFFFF at 13.59:1 contrast (WCAG AA passes).

Color values

HEX	#1C1B85
RGB	rgb(28, 27, 133)
HSL	hsl(241, 66%, 31%)
HSV	hsv(241, 80%, 52%)
CMYK	cmyk(78.9%, 79.7%, 0%, 47.8%)
CIE-LAB	lab(18.90, 38.19, -57.97)
CIE-LCH	lch(18.90, 69.42, 303.38°)
OKLab	oklab(31.73% 0.0055 -0.1678)
OKLCH	oklch(31.73% 0.168 271.9)
XYZ	xyz(5.1030, 2.7236, 22.4425)
Luminance	0.0272 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C1B85 #84851B

analogous

#1B4F85 #1C1B85 #511B85

triadic

#1C1B85 #851C1B #1B851C

tetradic

#1C1B85 #851B4F #84851B #1B8551

square

#1C1B85 #851B4F #84851B #1B8551

split-complementary

#1C1B85 #85511B #4F851B

monochromatic

#07061F #111152 #1C1B85 #2725B8 #4342D9

Accessibility & contrast

On white

13.59

#1C1B85 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#1C1B85 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C1B85

13.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C1B85	#FFFFFF	#000000	##FFFFFF
##1C1B85	1.00	13.59	1.54	13.59
#FFFFFF	13.59	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003388

Deuteranopia (green-blind)

#002983

Tritanopia (blue-blind)

#003B4F

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1c1b85;
/* rgb */ color: rgb(28, 27, 133);
/* oklch */ color: oklch(31.7% 0.168 271.9);

Tailwind

colors: {
  custom: {
    50: '#6c59aa',
    500: '#1c1b85',
    950: '#000000',
  },
}

SCSS

$custom: #1c1b85;
$custom-light: #6c59aa;
$custom-dark: #000000;

JSON

{
  "hex": "#1c1b85",
  "rgb": {
    "r": 28,
    "g": 27,
    "b": 133
  },
  "hsl": {
    "h": 240.566,
    "s": 66.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.31732,
    "c": 0.16789,
    "h": 271.9
  },
  "luminance": 0.02724
}

Semantic roles & 50–950 ramp

primary

#1C1B85

secondary

#B7B844

accent

#E93FE8

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #1C1B85

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

Preview Lab → · Contrast checker → · Palette generator →