#153B79#153B79

#153B79 is a dark, moderate blue. Relative luminance 0.047; OKLCH L 36.4% C 0.114 H 259.9°. Best body text is #FFFFFF at 10.86:1 contrast (WCAG AA passes).

Color values

HEX	#153B79
RGB	rgb(21, 59, 121)
HSL	hsl(217, 70%, 28%)
HSV	hsv(217, 83%, 47%)
CMYK	cmyk(82.6%, 51.2%, 0%, 52.5%)
CIE-LAB	lab(25.76, 11.28, -39.17)
CIE-LCH	lch(25.76, 40.77, 286.06°)
OKLab	oklab(36.37% -0.0202 -0.1127)
OKLCH	oklch(36.37% 0.114 259.9)
XYZ	xyz(5.3232, 4.6672, 18.7058)
Luminance	0.0467 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153B79 #795315

analogous

#156D79 #153B79 #211579

triadic

#153B79 #79153B #3B7915

tetradic

#153B79 #79156D #795315 #157921

square

#153B79 #79156D #795315 #157921

split-complementary

#153B79 #792115 #6D7915

monochromatic

#050D1A #0C2245 #153B79 #1E54AD #2E6FDB

Accessibility & contrast

On white

10.86

#153B79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#153B79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153B79

10.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153B79	#FFFFFF	#000000	##FFFFFF
##153B79	1.00	10.86	1.93	10.86
#FFFFFF	10.86	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#16427B

Deuteranopia (green-blind)

#003978

Tritanopia (blue-blind)

#004A54

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #153b79;
/* rgb */ color: rgb(21, 59, 121);
/* oklch */ color: oklch(36.4% 0.114 259.9);

Tailwind

colors: {
  custom: {
    50: '#6470a0',
    500: '#153b79',
    950: '#000000',
  },
}

SCSS

$custom: #153b79;
$custom-light: #6470a0;
$custom-dark: #000000;

JSON

{
  "hex": "#153b79",
  "rgb": {
    "r": 21,
    "g": 59,
    "b": 121
  },
  "hsl": {
    "h": 217.2,
    "s": 70.423,
    "l": 27.843
  },
  "oklch": {
    "l": 0.36367,
    "c": 0.11447,
    "h": 259.9
  },
  "luminance": 0.04668
}

Semantic roles & 50–950 ramp

primary

#153B79

secondary

#AF833B

accent

#A93BED

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070F

muted

#7A7A7E

Preview Lab

Preview with #153B79

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

Preview Lab → · Contrast checker → · Palette generator →