#143A74#143A74

#143A74 is a dark, moderate blue. Relative luminance 0.044; OKLCH L 35.7% C 0.109 H 259.0°. Best body text is #FFFFFF at 11.13:1 contrast (WCAG AA passes).

Color values

HEX	#143A74
RGB	rgb(20, 58, 116)
HSL	hsl(216, 71%, 27%)
HSV	hsv(216, 83%, 45%)
CMYK	cmyk(82.8%, 50%, 0%, 54.5%)
CIE-LAB	lab(25.06, 9.77, -37.14)
CIE-LCH	lch(25.06, 38.40, 284.74°)
OKLab	oklab(35.7% -0.0208 -0.1067)
OKLCH	oklch(35.7% 0.109 259)
XYZ	xyz(4.9528, 4.4352, 17.1147)
Luminance	0.0444 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143A74 #744E14

analogous

#146A74 #143A74 #1E1474

triadic

#143A74 #74143A #3A7414

tetradic

#143A74 #74146A #744E14 #14741E

square

#143A74 #74146A #744E14 #14741E

split-complementary

#143A74 #741E14 #6A7414

monochromatic

#050D1A #0B2040 #143A74 #1D54A8 #286FDA

Accessibility & contrast

On white

11.13

#143A74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#143A74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143A74

11.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143A74	#FFFFFF	#000000	##FFFFFF
##143A74	1.00	11.13	1.89	11.13
#FFFFFF	11.13	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#194076

Deuteranopia (green-blind)

#003773

Tritanopia (blue-blind)

#004851

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #143a74;
/* rgb */ color: rgb(20, 58, 116);
/* oklch */ color: oklch(35.7% 0.109 259.0);

Tailwind

colors: {
  custom: {
    50: '#636f9c',
    500: '#143a74',
    950: '#000000',
  },
}

SCSS

$custom: #143a74;
$custom-light: #636f9c;
$custom-dark: #000000;

JSON

{
  "hex": "#143a74",
  "rgb": {
    "r": 20,
    "g": 58,
    "b": 116
  },
  "hsl": {
    "h": 216.25,
    "s": 70.588,
    "l": 26.667
  },
  "oklch": {
    "l": 0.35702,
    "c": 0.10875,
    "h": 259
  },
  "luminance": 0.04436
}

Semantic roles & 50–950 ramp

primary

#143A74

secondary

#AA7E3A

accent

#A73AED

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #143A74

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

Preview Lab → · Contrast checker → · Palette generator →