#1C187A#1C187A

#1C187A is a dark, vivid blue. Relative luminance 0.023; OKLCH L 30.0% C 0.157 H 273.3°. Best body text is #FFFFFF at 14.37:1 contrast (WCAG AA passes).

Color values

HEX	#1C187A
RGB	rgb(28, 24, 122)
HSL	hsl(242, 67%, 29%)
HSV	hsv(242, 80%, 48%)
CMYK	cmyk(77%, 80.3%, 0%, 52.2%)
CIE-LAB	lab(17.01, 36.11, -54.11)
CIE-LCH	lch(17.01, 65.05, 303.72°)
OKLab	oklab(30.02% 0.0091 -0.1565)
OKLCH	oklch(30.02% 0.157 273.3)
XYZ	xyz(4.3172, 2.3048, 18.6259)
Luminance	0.0231 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C187A #767A18

analogous

#18457A #1C187A #4D187A

triadic

#1C187A #7A1C18 #187A1C

tetradic

#1C187A #7A1845 #767A18 #187A4D

square

#1C187A #7A1845 #767A18 #187A4D

split-complementary

#1C187A #7A4D18 #457A18

monochromatic

#06051A #100E47 #1C187A #2822AD #3C35D7

Accessibility & contrast

On white

14.37

#1C187A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#1C187A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C187A

14.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C187A	#FFFFFF	#000000	##FFFFFF
##1C187A	1.00	14.37	1.46	14.37
#FFFFFF	14.37	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E7D

Deuteranopia (green-blind)

#002578

Tritanopia (blue-blind)

#003648

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #1c187a;
/* rgb */ color: rgb(28, 24, 122);
/* oklch */ color: oklch(30.0% 0.157 273.3);

Tailwind

colors: {
  custom: {
    50: '#6a57a2',
    500: '#1c187a',
    950: '#000000',
  },
}

SCSS

$custom: #1c187a;
$custom-light: #6a57a2;
$custom-dark: #000000;

JSON

{
  "hex": "#1c187a",
  "rgb": {
    "r": 28,
    "g": 24,
    "b": 122
  },
  "hsl": {
    "h": 242.449,
    "s": 67.123,
    "l": 28.627
  },
  "oklch": {
    "l": 0.30023,
    "c": 0.15682,
    "h": 273.3
  },
  "luminance": 0.02305
}

Semantic roles & 50–950 ramp

primary

#1C187A

secondary

#AAAF3F

accent

#EA3EE3

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#08030F

muted

#7A787F

Preview Lab

Preview with #1C187A

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

Preview Lab → · Contrast checker → · Palette generator →