#1C2157#1C2157

#1C2157 is a dark, moderate blue. Relative luminance 0.020; OKLCH L 27.9% C 0.096 H 274.3°. Best body text is #FFFFFF at 14.95:1 contrast (WCAG AA passes).

Color values

HEX	#1C2157
RGB	rgb(28, 33, 87)
HSL	hsl(235, 51%, 23%)
HSV	hsv(235, 68%, 34%)
CMYK	cmyk(67.8%, 62.1%, 0%, 65.9%)
CIE-LAB	lab(15.60, 17.13, -33.46)
CIE-LCH	lch(15.60, 37.59, 297.11°)
OKLab	oklab(27.92% 0.0073 -0.0962)
OKLCH	oklch(27.92% 0.096 274.3)
XYZ	xyz(2.7425, 2.0225, 9.2608)
Luminance	0.0202 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2157 #57521C

analogous

#1C3F57 #1C2157 #341C57

triadic

#1C2157 #571C21 #21571C

tetradic

#1C2157 #571C3F #57521C #1C5734

square

#1C2157 #571C3F #57521C #1C5734

split-complementary

#1C2157 #57341C #3F571C

monochromatic

#070917 #0D0F29 #1C2157 #2B3385 #3A44B4

Accessibility & contrast

On white

14.95

#1C2157 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.40

#1C2157 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2157

14.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2157	#FFFFFF	#000000	##FFFFFF
##1C2157	1.00	14.95	1.40	14.95
#FFFFFF	14.95	1.00	21.00	1.00
#000000	1.40	21.00	1.00	21.00
##FFFFFF	14.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A59

Deuteranopia (green-blind)

#002456

Tritanopia (blue-blind)

#002E38

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #1c2157;
/* rgb */ color: rgb(28, 33, 87);
/* oklch */ color: oklch(27.9% 0.096 274.3);

Tailwind

colors: {
  custom: {
    50: '#605c87',
    500: '#1c2157',
    950: '#000000',
  },
}

SCSS

$custom: #1c2157;
$custom-light: #605c87;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2157",
  "rgb": {
    "r": 28,
    "g": 33,
    "b": 87
  },
  "hsl": {
    "h": 234.915,
    "s": 51.304,
    "l": 22.549
  },
  "oklch": {
    "l": 0.27921,
    "c": 0.09646,
    "h": 274.3
  },
  "luminance": 0.02023
}

Semantic roles & 50–950 ramp

primary

#1C2157

secondary

#8D8642

accent

#CF4DDB

background

#F5F5F8

surface

#EAE9EF

border

#C6C5CA

text

#05040B

muted

#79797C

Preview Lab

Preview with #1C2157

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

Preview Lab → · Contrast checker → · Palette generator →