#143E7B#143E7B

#143E7B is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.2% C 0.114 H 258.4°. Best body text is #FFFFFF at 10.47:1 contrast (WCAG AA passes).

Color values

HEX	#143E7B
RGB	rgb(20, 62, 123)
HSL	hsl(216, 72%, 28%)
HSV	hsv(216, 84%, 48%)
CMYK	cmyk(83.7%, 49.6%, 0%, 51.8%)
CIE-LAB	lab(26.80, 9.90, -38.77)
CIE-LCH	lch(26.80, 40.01, 284.32°)
OKLab	oklab(37.2% -0.023 -0.1114)
OKLCH	oklch(37.2% 0.114 258.4)
XYZ	xyz(5.5850, 5.0234, 19.4103)
Luminance	0.0502 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143E7B #7B5114

analogous

#14717B #143E7B #1D147B

triadic

#143E7B #7B143E #3E7B14

tetradic

#143E7B #7B1471 #7B5114 #147B1D

square

#143E7B #7B1471 #7B5114 #147B1D

split-complementary

#143E7B #7B1D14 #717B14

monochromatic

#040D1A #0B2346 #143E7B #1D59B0 #2D74DD

Accessibility & contrast

On white

10.47

#143E7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#143E7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143E7B

10.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143E7B	#FFFFFF	#000000	##FFFFFF
##143E7B	1.00	10.47	2.00	10.47
#FFFFFF	10.47	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B447D

Deuteranopia (green-blind)

#003B7A

Tritanopia (blue-blind)

#004D56

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #143e7b;
/* rgb */ color: rgb(20, 62, 123);
/* oklch */ color: oklch(37.2% 0.114 258.4);

Tailwind

colors: {
  custom: {
    50: '#6472a2',
    500: '#143e7b',
    950: '#000000',
  },
}

SCSS

$custom: #143e7b;
$custom-light: #6472a2;
$custom-dark: #000000;

JSON

{
  "hex": "#143e7b",
  "rgb": {
    "r": 20,
    "g": 62,
    "b": 123
  },
  "hsl": {
    "h": 215.534,
    "s": 72.028,
    "l": 28.039
  },
  "oklch": {
    "l": 0.37201,
    "c": 0.11377,
    "h": 258.4
  },
  "luminance": 0.05024
}

Semantic roles & 50–950 ramp

primary

#143E7B

secondary

#B1803A

accent

#A539EF

background

#F6F6FA

surface

#EBECF3

border

#C6C7CD

text

#06080F

muted

#7A7B7F

Preview Lab

Preview with #143E7B

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

Preview Lab → · Contrast checker → · Palette generator →