#153D79#153D79

#153D79 is a dark, moderate blue. Relative luminance 0.049; OKLCH L 36.8% C 0.112 H 258.7°. Best body text is #FFFFFF at 10.63:1 contrast (WCAG AA passes).

Color values

HEX	#153D79
RGB	rgb(21, 61, 121)
HSL	hsl(216, 70%, 28%)
HSV	hsv(216, 83%, 47%)
CMYK	cmyk(82.6%, 49.6%, 0%, 52.5%)
CIE-LAB	lab(26.38, 9.87, -38.18)
CIE-LCH	lch(26.38, 39.44, 284.50°)
OKLab	oklab(36.84% -0.0218 -0.1097)
OKLCH	oklch(36.84% 0.112 258.7)
XYZ	xyz(5.4279, 4.8767, 18.7407)
Luminance	0.0488 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153D79 #795115

analogous

#156F79 #153D79 #1F1579

triadic

#153D79 #79153D #3D7915

tetradic

#153D79 #79156F #795115 #15791F

square

#153D79 #79156F #795115 #15791F

split-complementary

#153D79 #791F15 #6F7915

monochromatic

#050D1A #0C2345 #153D79 #1E57AD #2E73DB

Accessibility & contrast

On white

10.63

#153D79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#153D79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153D79

10.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153D79	#FFFFFF	#000000	##FFFFFF
##153D79	1.00	10.63	1.98	10.63
#FFFFFF	10.63	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B437B

Deuteranopia (green-blind)

#003A78

Tritanopia (blue-blind)

#004B55

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #153d79;
/* rgb */ color: rgb(21, 61, 121);
/* oklch */ color: oklch(36.8% 0.112 258.7);

Tailwind

colors: {
  custom: {
    50: '#6471a0',
    500: '#153d79',
    950: '#000000',
  },
}

SCSS

$custom: #153d79;
$custom-light: #6471a0;
$custom-dark: #000000;

JSON

{
  "hex": "#153d79",
  "rgb": {
    "r": 21,
    "g": 61,
    "b": 121
  },
  "hsl": {
    "h": 216,
    "s": 70.423,
    "l": 27.843
  },
  "oklch": {
    "l": 0.3684,
    "c": 0.11187,
    "h": 258.7
  },
  "luminance": 0.04877
}

Semantic roles & 50–950 ramp

primary

#153D79

secondary

#AF803B

accent

#A63BED

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070F

muted

#7A7A7E

Preview Lab

Preview with #153D79

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

Preview Lab → · Contrast checker → · Palette generator →