#143C75#143C75

#143C75 is a dark, moderate blue. Relative luminance 0.047; OKLCH L 36.3% C 0.108 H 258.0°. Best body text is #FFFFFF at 10.86:1 contrast (WCAG AA passes).

Color values

HEX	#143C75
RGB	rgb(20, 60, 117)
HSL	hsl(215, 71%, 27%)
HSV	hsv(215, 83%, 46%)
CMYK	cmyk(82.9%, 48.7%, 0%, 54.1%)
CIE-LAB	lab(25.76, 8.78, -36.66)
CIE-LCH	lch(25.76, 37.69, 283.47°)
OKLab	oklab(36.26% -0.0224 -0.1053)
OKLCH	oklch(36.26% 0.108 258)
XYZ	xyz(5.1141, 4.6642, 17.4569)
Luminance	0.0466 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143C75 #754D14

analogous

#146D75 #143C75 #1D1475

triadic

#143C75 #75143C #3C7514

tetradic

#143C75 #75146D #754D14 #14751D

square

#143C75 #75146D #754D14 #14751D

split-complementary

#143C75 #751D14 #6D7514

monochromatic

#040D1A #0B2141 #143C75 #1D57A9 #2972DA

Accessibility & contrast

On white

10.86

#143C75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#143C75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143C75

10.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143C75	#FFFFFF	#000000	##FFFFFF
##143C75	1.00	10.86	1.93	10.86
#FFFFFF	10.86	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D4277

Deuteranopia (green-blind)

#033974

Tritanopia (blue-blind)

#004A52

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #143c75;
/* rgb */ color: rgb(20, 60, 117);
/* oklch */ color: oklch(36.3% 0.108 258.0);

Tailwind

colors: {
  custom: {
    50: '#63719d',
    500: '#143c75',
    950: '#000000',
  },
}

SCSS

$custom: #143c75;
$custom-light: #63719d;
$custom-dark: #000000;

JSON

{
  "hex": "#143c75",
  "rgb": {
    "r": 20,
    "g": 60,
    "b": 117
  },
  "hsl": {
    "h": 215.258,
    "s": 70.803,
    "l": 26.863
  },
  "oklch": {
    "l": 0.3626,
    "c": 0.10762,
    "h": 258
  },
  "luminance": 0.04665
}

Semantic roles & 50–950 ramp

primary

#143C75

secondary

#AB7C3A

accent

#A43AEE

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #143C75

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

Preview Lab → · Contrast checker → · Palette generator →