#1C148B#1C148B

#1C148B is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.6% C 0.181 H 272.0°. Best body text is #FFFFFF at 13.80:1 contrast (WCAG AA passes).

Color values

HEX	#1C148B
RGB	rgb(28, 20, 139)
HSL	hsl(244, 75%, 31%)
HSV	hsv(244, 86%, 55%)
CMYK	cmyk(79.9%, 85.6%, 0%, 45.5%)
CIE-LAB	lab(18.41, 43.74, -62.55)
CIE-LCH	lch(18.41, 76.33, 304.97°)
OKLab	oklab(31.61% 0.0062 -0.1809)
OKLCH	oklch(31.61% 0.181 272)
XYZ	xyz(5.3877, 2.6107, 24.6411)
Luminance	0.0261 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C148B #838B14

analogous

#14478B #1C148B #57148B

triadic

#1C148B #8B1C14 #148B1C

tetradic

#1C148B #8B1447 #838B14 #148B57

square

#1C148B #8B1447 #838B14 #148B57

split-complementary

#1C148B #8B5714 #478B14

monochromatic

#060520 #110C55 #1C148B #271CC1 #4337E2

Accessibility & contrast

On white

13.80

#1C148B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#1C148B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C148B

13.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C148B	#FFFFFF	#000000	##FFFFFF
##1C148B	1.00	13.80	1.52	13.80
#FFFFFF	13.80	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00328E

Deuteranopia (green-blind)

#002789

Tritanopia (blue-blind)

#003B52

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1c148b;
/* rgb */ color: rgb(28, 20, 139);
/* oklch */ color: oklch(31.6% 0.181 272.0);

Tailwind

colors: {
  custom: {
    50: '#6f56ae',
    500: '#1c148b',
    950: '#000000',
  },
}

SCSS

$custom: #1c148b;
$custom-light: #6f56ae;
$custom-dark: #000000;

JSON

{
  "hex": "#1c148b",
  "rgb": {
    "r": 28,
    "g": 20,
    "b": 139
  },
  "hsl": {
    "h": 244.034,
    "s": 74.843,
    "l": 31.176
  },
  "oklch": {
    "l": 0.31605,
    "c": 0.18106,
    "h": 272
  },
  "luminance": 0.02611
}

Semantic roles & 50–950 ramp

primary

#1C148B

secondary

#B6BF3C

accent

#F136E5

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#090310

muted

#7B787F

Preview Lab

Preview with #1C148B

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

Preview Lab → · Contrast checker → · Palette generator →