#1C2187#1C2187

#1C2187 is a dark, vivid blue. Relative luminance 0.031; OKLCH L 32.8% C 0.164 H 270.9°. Best body text is #FFFFFF at 12.99:1 contrast (WCAG AA passes).

Color values

HEX	#1C2187
RGB	rgb(28, 33, 135)
HSL	hsl(237, 66%, 32%)
HSV	hsv(237, 79%, 53%)
CMYK	cmyk(79.3%, 75.6%, 0%, 47.1%)
CIE-LAB	lab(20.37, 35.36, -56.79)
CIE-LCH	lch(20.37, 66.90, 301.91°)
OKLab	oklab(32.84% 0.0027 -0.1644)
OKLCH	oklch(32.84% 0.164 270.9)
XYZ	xyz(5.3944, 3.0833, 23.2278)
Luminance	0.0308 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2187 #87821C

analogous

#1C5787 #1C2187 #4D1C87

triadic

#1C2187 #871C21 #21871C

tetradic

#1C2187 #871C57 #87821C #1C874D

square

#1C2187 #871C57 #87821C #1C874D

split-complementary

#1C2187 #874D1C #57871C

monochromatic

#070822 #111554 #1C2187 #272DBA #454CD8

Accessibility & contrast

On white

12.99

#1C2187 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#1C2187 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2187

12.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2187	#FFFFFF	#000000	##FFFFFF
##1C2187	1.00	12.99	1.62	12.99
#FFFFFF	12.99	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00368A

Deuteranopia (green-blind)

#002C85

Tritanopia (blue-blind)

#003F52

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1c2187;
/* rgb */ color: rgb(28, 33, 135);
/* oklch */ color: oklch(32.8% 0.164 270.9);

Tailwind

colors: {
  custom: {
    50: '#6c5dab',
    500: '#1c2187',
    950: '#000000',
  },
}

SCSS

$custom: #1c2187;
$custom-light: #6c5dab;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2187",
  "rgb": {
    "r": 28,
    "g": 33,
    "b": 135
  },
  "hsl": {
    "h": 237.196,
    "s": 65.644,
    "l": 31.961
  },
  "oklch": {
    "l": 0.32842,
    "c": 0.16446,
    "h": 270.9
  },
  "luminance": 0.03084
}

Semantic roles & 50–950 ramp

primary

#1C2187

secondary

#BAB445

accent

#E13FE9

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #1C2187

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

Preview Lab → · Contrast checker → · Palette generator →