#143A71#143A71

#143A71 is a dark, moderate blue. Relative luminance 0.044; OKLCH L 35.5% C 0.104 H 258.2°. Best body text is #FFFFFF at 11.21:1 contrast (WCAG AA passes).

Color values

HEX	#143A71
RGB	rgb(20, 58, 113)
HSL	hsl(215, 70%, 26%)
HSV	hsv(215, 82%, 44%)
CMYK	cmyk(82.3%, 48.7%, 0%, 55.7%)
CIE-LAB	lab(24.85, 8.50, -35.57)
CIE-LCH	lch(24.85, 36.58, 283.44°)
OKLab	oklab(35.47% -0.0214 -0.1021)
OKLCH	oklch(35.47% 0.104 258.2)
XYZ	xyz(4.7811, 4.3665, 16.2104)
Luminance	0.0437 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143A71 #714B14

analogous

#146871 #143A71 #1C1471

triadic

#143A71 #71143A #3A7114

tetradic

#143A71 #711468 #714B14 #14711C

square

#143A71 #711468 #714B14 #14711C

split-complementary

#143A71 #711C14 #687114

monochromatic

#050D1A #0B1F3D #143A71 #1D55A5 #276FD9

Accessibility & contrast

On white

11.21

#143A71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#143A71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143A71

11.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143A71	#FFFFFF	#000000	##FFFFFF
##143A71	1.00	11.21	1.87	11.21
#FFFFFF	11.21	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C3F73

Deuteranopia (green-blind)

#043770

Tritanopia (blue-blind)

#004750

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #143a71;
/* rgb */ color: rgb(20, 58, 113);
/* oklch */ color: oklch(35.5% 0.104 258.2);

Tailwind

colors: {
  custom: {
    50: '#626f9a',
    500: '#143a71',
    950: '#000000',
  },
}

SCSS

$custom: #143a71;
$custom-light: #626f9a;
$custom-dark: #000000;

JSON

{
  "hex": "#143a71",
  "rgb": {
    "r": 20,
    "g": 58,
    "b": 113
  },
  "hsl": {
    "h": 215.484,
    "s": 69.925,
    "l": 26.078
  },
  "oklch": {
    "l": 0.35469,
    "c": 0.10433,
    "h": 258.2
  },
  "luminance": 0.04367
}

Semantic roles & 50–950 ramp

primary

#143A71

secondary

#A77A39

accent

#A43BED

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #143A71

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

Preview Lab → · Contrast checker → · Palette generator →