#143B7A#143B7A

#143B7A is a dark, moderate blue. Relative luminance 0.047; OKLCH L 36.4% C 0.116 H 259.8°. Best body text is #FFFFFF at 10.84:1 contrast (WCAG AA passes).

Color values

HEX	#143B7A
RGB	rgb(20, 59, 122)
HSL	hsl(217, 72%, 28%)
HSV	hsv(217, 84%, 48%)
CMYK	cmyk(83.6%, 51.6%, 0%, 52.2%)
CIE-LAB	lab(25.81, 11.59, -39.74)
CIE-LCH	lch(25.81, 41.40, 286.26°)
OKLab	oklab(36.41% -0.0207 -0.1144)
OKLCH	oklch(36.41% 0.116 259.8)
XYZ	xyz(5.3640, 4.6811, 19.0294)
Luminance	0.0468 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143B7A #7A5314

analogous

#146E7A #143B7A #20147A

triadic

#143B7A #7A143B #3B7A14

tetradic

#143B7A #7A146E #7A5314 #147A20

square

#143B7A #7A146E #7A5314 #147A20

split-complementary

#143B7A #7A2014 #6E7A14

monochromatic

#040D1A #0B2245 #143B7A #1D54AF #2C6FDC

Accessibility & contrast

On white

10.84

#143B7A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#143B7A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143B7A

10.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143B7A	#FFFFFF	#000000	##FFFFFF
##143B7A	1.00	10.84	1.94	10.84
#FFFFFF	10.84	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#14427C

Deuteranopia (green-blind)

#003979

Tritanopia (blue-blind)

#004A54

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #143b7a;
/* rgb */ color: rgb(20, 59, 122);
/* oklch */ color: oklch(36.4% 0.116 259.8);

Tailwind

colors: {
  custom: {
    50: '#6470a1',
    500: '#143b7a',
    950: '#000000',
  },
}

SCSS

$custom: #143b7a;
$custom-light: #6470a1;
$custom-dark: #000000;

JSON

{
  "hex": "#143b7a",
  "rgb": {
    "r": 20,
    "g": 59,
    "b": 122
  },
  "hsl": {
    "h": 217.059,
    "s": 71.831,
    "l": 27.843
  },
  "oklch": {
    "l": 0.36414,
    "c": 0.11621,
    "h": 259.8
  },
  "luminance": 0.04682
}

Semantic roles & 50–950 ramp

primary

#143B7A

secondary

#B0833A

accent

#A939EF

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070F

muted

#7A7A7E

Preview Lab

Preview with #143B7A

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

Preview Lab → · Contrast checker → · Palette generator →