#143B75#143B75

#143B75 is a dark, moderate blue. Relative luminance 0.046; OKLCH L 36.0% C 0.109 H 258.6°. Best body text is #FFFFFF at 10.98:1 contrast (WCAG AA passes).

Color values

HEX	#143B75
RGB	rgb(20, 59, 117)
HSL	hsl(216, 71%, 27%)
HSV	hsv(216, 83%, 46%)
CMYK	cmyk(82.9%, 49.6%, 0%, 54.1%)
CIE-LAB	lab(25.44, 9.48, -37.16)
CIE-LCH	lch(25.44, 38.35, 284.32°)
OKLab	oklab(36.02% -0.0215 -0.1068)
OKLCH	oklch(36.02% 0.109 258.6)
XYZ	xyz(5.0622, 4.5604, 17.4396)
Luminance	0.0456 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143B75 #754E14

analogous

#146C75 #143B75 #1D1475

triadic

#143B75 #75143B #3B7514

tetradic

#143B75 #75146C #754E14 #14751D

square

#143B75 #75146C #754E14 #14751D

split-complementary

#143B75 #751D14 #6C7514

monochromatic

#040D1A #0B2141 #143B75 #1D55A9 #2970DA

Accessibility & contrast

On white

10.98

#143B75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#143B75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143B75

10.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143B75	#FFFFFF	#000000	##FFFFFF
##143B75	1.00	10.98	1.91	10.98
#FFFFFF	10.98	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B4177

Deuteranopia (green-blind)

#003874

Tritanopia (blue-blind)

#004952

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #143b75;
/* rgb */ color: rgb(20, 59, 117);
/* oklch */ color: oklch(36.0% 0.109 258.6);

Tailwind

colors: {
  custom: {
    50: '#63709d',
    500: '#143b75',
    950: '#000000',
  },
}

SCSS

$custom: #143b75;
$custom-light: #63709d;
$custom-dark: #000000;

JSON

{
  "hex": "#143b75",
  "rgb": {
    "r": 20,
    "g": 59,
    "b": 117
  },
  "hsl": {
    "h": 215.876,
    "s": 70.803,
    "l": 26.863
  },
  "oklch": {
    "l": 0.36019,
    "c": 0.10891,
    "h": 258.6
  },
  "luminance": 0.04561
}

Semantic roles & 50–950 ramp

primary

#143B75

secondary

#AB7E3A

accent

#A53AEE

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #143B75

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

Preview Lab → · Contrast checker → · Palette generator →