#1C137F#1C137F

#1C137F is a dark, vivid blue. Relative luminance 0.022; OKLCH L 30.0% C 0.167 H 273.3°. Best body text is #FFFFFF at 14.49:1 contrast (WCAG AA passes).

Color values

HEX	#1C137F
RGB	rgb(28, 19, 127)
HSL	hsl(245, 74%, 29%)
HSV	hsv(245, 85%, 50%)
CMYK	cmyk(78%, 85%, 0%, 50.2%)
CIE-LAB	lab(16.72, 40.39, -57.78)
CIE-LCH	lch(16.72, 70.50, 304.96°)
OKLab	oklab(30% 0.0097 -0.1671)
OKLCH	oklch(30% 0.167 273.3)
XYZ	xyz(4.5413, 2.2445, 20.2684)
Luminance	0.0225 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C137F #767F13

analogous

#13407F #1C137F #52137F

triadic

#1C137F #7F1C13 #137F1C

tetradic

#1C137F #7F1340 #767F13 #137F52

square

#1C137F #7F1340 #767F13 #137F52

split-complementary

#1C137F #7F5213 #407F13

monochromatic

#06041B #100B4A #1C137F #281BB4 #3C2DE0

Accessibility & contrast

On white

14.49

#1C137F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#1C137F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C137F

14.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C137F	#FFFFFF	#000000	##FFFFFF
##1C137F	1.00	14.49	1.45	14.49
#FFFFFF	14.49	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E82

Deuteranopia (green-blind)

#00247D

Tritanopia (blue-blind)

#00364A

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #1c137f;
/* rgb */ color: rgb(28, 19, 127);
/* oklch */ color: oklch(30.0% 0.167 273.3);

Tailwind

colors: {
  custom: {
    50: '#6c55a5',
    500: '#1c137f',
    950: '#000000',
  },
}

SCSS

$custom: #1c137f;
$custom-light: #6c55a5;
$custom-dark: #000000;

JSON

{
  "hex": "#1c137f",
  "rgb": {
    "r": 28,
    "g": 19,
    "b": 127
  },
  "hsl": {
    "h": 245,
    "s": 73.973,
    "l": 28.627
  },
  "oklch": {
    "l": 0.29999,
    "c": 0.16741,
    "h": 273.3
  },
  "luminance": 0.02245
}

Semantic roles & 50–950 ramp

primary

#1C137F

secondary

#AAB439

accent

#F137E1

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #1C137F

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

Preview Lab → · Contrast checker → · Palette generator →