#143B74#143B74

#143B74 is a dark, moderate blue. Relative luminance 0.045; OKLCH L 35.9% C 0.107 H 258.4°. Best body text is #FFFFFF at 11.01:1 contrast (WCAG AA passes).

Color values

HEX	#143B74
RGB	rgb(20, 59, 116)
HSL	hsl(216, 71%, 27%)
HSV	hsv(216, 83%, 45%)
CMYK	cmyk(82.8%, 49.1%, 0%, 54.5%)
CIE-LAB	lab(25.37, 9.06, -36.64)
CIE-LCH	lch(25.37, 37.74, 283.89°)
OKLab	oklab(35.94% -0.0217 -0.1052)
OKLCH	oklch(35.94% 0.107 258.4)
XYZ	xyz(5.0037, 4.5370, 17.1316)
Luminance	0.0454 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143B74 #744D14

analogous

#146B74 #143B74 #1D1474

triadic

#143B74 #74143B #3B7414

tetradic

#143B74 #74146B #744D14 #14741D

square

#143B74 #74146B #744D14 #14741D

split-complementary

#143B74 #741D14 #6B7414

monochromatic

#050D1A #0B2040 #143B74 #1D56A8 #2871DA

Accessibility & contrast

On white

11.01

#143B74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#143B74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143B74

11.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143B74	#FFFFFF	#000000	##FFFFFF
##143B74	1.00	11.01	1.91	11.01
#FFFFFF	11.01	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C4176

Deuteranopia (green-blind)

#013873

Tritanopia (blue-blind)

#004952

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #143b74;
/* rgb */ color: rgb(20, 59, 116);
/* oklch */ color: oklch(35.9% 0.107 258.4);

Tailwind

colors: {
  custom: {
    50: '#62709c',
    500: '#143b74',
    950: '#000000',
  },
}

SCSS

$custom: #143b74;
$custom-light: #62709c;
$custom-dark: #000000;

JSON

{
  "hex": "#143b74",
  "rgb": {
    "r": 20,
    "g": 59,
    "b": 116
  },
  "hsl": {
    "h": 215.625,
    "s": 70.588,
    "l": 26.667
  },
  "oklch": {
    "l": 0.35942,
    "c": 0.10745,
    "h": 258.4
  },
  "luminance": 0.04538
}

Semantic roles & 50–950 ramp

primary

#143B74

secondary

#AA7C3A

accent

#A53AED

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #143B74

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

Preview Lab → · Contrast checker → · Palette generator →