#153AB4#153AB4

#153AB4 is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.6% C 0.196 H 265.0°. Best body text is #FFFFFF at 9.15:1 contrast (WCAG AA passes).

Color values

HEX	#153AB4
RGB	rgb(21, 58, 180)
HSL	hsl(226, 79%, 39%)
HSV	hsv(226, 88%, 71%)
CMYK	cmyk(88.3%, 67.8%, 0%, 29.4%)
CIE-LAB	lab(30.59, 35.67, -67.41)
CIE-LCH	lch(30.59, 76.27, 297.88°)
OKLab	oklab(41.55% -0.0171 -0.1955)
OKLCH	oklch(41.55% 0.196 265)
XYZ	xyz(10.0576, 6.4795, 43.8917)
Luminance	0.0648 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153AB4 #B48F15

analogous

#1589B4 #153AB4 #4015B4

triadic

#153AB4 #B4153A #3AB415

tetradic

#153AB4 #B41589 #B48F15 #15B440

square

#153AB4 #B41589 #B48F15 #15B440

split-complementary

#153AB4 #B44015 #89B415

monochromatic

#081746 #0F287D #153AB4 #214FE5 #587AEC

Accessibility & contrast

On white

9.15

#153AB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#153AB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153AB4

9.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153AB4	#FFFFFF	#000000	##FFFFFF
##153AB4	1.00	9.15	2.30	9.15
#FFFFFF	9.15	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B8

Deuteranopia (green-blind)

#0041B2

Tritanopia (blue-blind)

#005C72

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #153ab4;
/* rgb */ color: rgb(21, 58, 180);
/* oklch */ color: oklch(41.6% 0.196 265.0);

Tailwind

colors: {
  custom: {
    50: '#7570cc',
    500: '#153ab4',
    950: '#000000',
  },
}

SCSS

$custom: #153ab4;
$custom-light: #7570cc;
$custom-dark: #000000;

JSON

{
  "hex": "#153ab4",
  "rgb": {
    "r": 21,
    "g": 58,
    "b": 180
  },
  "hsl": {
    "h": 226.038,
    "s": 79.104,
    "l": 39.412
  },
  "oklch": {
    "l": 0.41554,
    "c": 0.19621,
    "h": 265
  },
  "luminance": 0.06481
}

Semantic roles & 50–950 ramp

primary

#153AB4

secondary

#CFB356

accent

#C832F6

background

#F7F6FC

surface

#EEECF9

border

#C9C7D2

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #153AB4

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

Preview Lab → · Contrast checker → · Palette generator →