#153A73#153A73

#153A73 is a dark, moderate blue. Relative luminance 0.044; OKLCH L 35.7% C 0.107 H 259.1°. Best body text is #FFFFFF at 11.14:1 contrast (WCAG AA passes).

Color values

HEX	#153A73
RGB	rgb(21, 58, 115)
HSL	hsl(216, 69%, 27%)
HSV	hsv(216, 82%, 45%)
CMYK	cmyk(81.7%, 49.6%, 0%, 54.9%)
CIE-LAB	lab(25.02, 9.47, -36.56)
CIE-LCH	lch(25.02, 37.77, 284.51°)
OKLab	oklab(35.66% -0.0203 -0.105)
OKLCH	oklch(35.66% 0.107 259.1)
XYZ	xyz(4.9157, 4.4228, 16.8109)
Luminance	0.0442 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153A73 #734E15

analogous

#156973 #153A73 #1F1573

triadic

#153A73 #73153A #3A7315

tetradic

#153A73 #731569 #734E15 #15731F

square

#153A73 #731569 #734E15 #15731F

split-complementary

#153A73 #731F15 #697315

monochromatic

#050D1A #0C203F #153A73 #1E54A7 #2A6FD8

Accessibility & contrast

On white

11.14

#153A73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#153A73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153A73

11.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153A73	#FFFFFF	#000000	##FFFFFF
##153A73	1.00	11.14	1.88	11.14
#FFFFFF	11.14	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A4075

Deuteranopia (green-blind)

#003772

Tritanopia (blue-blind)

#004851

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #153a73;
/* rgb */ color: rgb(21, 58, 115);
/* oklch */ color: oklch(35.7% 0.107 259.1);

Tailwind

colors: {
  custom: {
    50: '#636f9c',
    500: '#153a73',
    950: '#000000',
  },
}

SCSS

$custom: #153a73;
$custom-light: #636f9c;
$custom-dark: #000000;

JSON

{
  "hex": "#153a73",
  "rgb": {
    "r": 21,
    "g": 58,
    "b": 115
  },
  "hsl": {
    "h": 216.383,
    "s": 69.118,
    "l": 26.667
  },
  "oklch": {
    "l": 0.35659,
    "c": 0.10698,
    "h": 259.1
  },
  "luminance": 0.04423
}

Semantic roles & 50–950 ramp

primary

#153A73

secondary

#A97E3B

accent

#A73CEC

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #153A73

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

Preview Lab → · Contrast checker → · Palette generator →