#143A75#143A75

#143A75 is a dark, moderate blue. Relative luminance 0.045; OKLCH L 35.8% C 0.110 H 259.2°. Best body text is #FFFFFF at 11.10:1 contrast (WCAG AA passes).

Color values

HEX	#143A75
RGB	rgb(20, 58, 117)
HSL	hsl(216, 71%, 27%)
HSV	hsv(216, 83%, 46%)
CMYK	cmyk(82.9%, 50.4%, 0%, 54.1%)
CIE-LAB	lab(25.13, 10.19, -37.66)
CIE-LCH	lch(25.13, 39.02, 285.14°)
OKLab	oklab(35.78% -0.0206 -0.1083)
OKLCH	oklch(35.78% 0.11 259.2)
XYZ	xyz(5.0113, 4.4586, 17.4227)
Luminance	0.0446 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143A75 #754F14

analogous

#146B75 #143A75 #1F1475

triadic

#143A75 #75143A #3A7514

tetradic

#143A75 #75146B #754F14 #14751F

square

#143A75 #75146B #754F14 #14751F

split-complementary

#143A75 #751F14 #6B7514

monochromatic

#040D1A #0B2041 #143A75 #1D54A9 #296EDA

Accessibility & contrast

On white

11.10

#143A75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#143A75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143A75

11.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143A75	#FFFFFF	#000000	##FFFFFF
##143A75	1.00	11.10	1.89	11.10
#FFFFFF	11.10	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#184077

Deuteranopia (green-blind)

#003774

Tritanopia (blue-blind)

#004852

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #143a75;
/* rgb */ color: rgb(20, 58, 117);
/* oklch */ color: oklch(35.8% 0.110 259.2);

Tailwind

colors: {
  custom: {
    50: '#636f9d',
    500: '#143a75',
    950: '#000000',
  },
}

SCSS

$custom: #143a75;
$custom-light: #636f9d;
$custom-dark: #000000;

JSON

{
  "hex": "#143a75",
  "rgb": {
    "r": 20,
    "g": 58,
    "b": 117
  },
  "hsl": {
    "h": 216.495,
    "s": 70.803,
    "l": 26.863
  },
  "oklch": {
    "l": 0.3578,
    "c": 0.11021,
    "h": 259.2
  },
  "luminance": 0.04459
}

Semantic roles & 50–950 ramp

primary

#143A75

secondary

#AB7F3A

accent

#A73AEE

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #143A75

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

Preview Lab → · Contrast checker → · Palette generator →