#153A9E#153A9E

#153A9E is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.4% C 0.168 H 264.3°. Best body text is #FFFFFF at 9.86:1 contrast (WCAG AA passes).

Color values

HEX	#153A9E
RGB	rgb(21, 58, 158)
HSL	hsl(224, 77%, 35%)
HSV	hsv(224, 87%, 62%)
CMYK	cmyk(86.7%, 63.3%, 0%, 38%)
CIE-LAB	lab(28.52, 27.15, -57.60)
CIE-LCH	lch(28.52, 63.68, 295.24°)
OKLab	oklab(39.4% -0.0167 -0.1668)
OKLCH	oklch(39.4% 0.168 264.3)
XYZ	xyz(7.9917, 5.6532, 33.0111)
Luminance	0.0565 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153A9E #9E7915

analogous

#157E9E #153A9E #35159E

triadic

#153A9E #9E153A #3A9E15

tetradic

#153A9E #9E157E #9E7915 #159E35

square

#153A9E #9E157E #9E7915 #159E35

split-complementary

#153A9E #9E3515 #7E9E15

monochromatic

#071232 #0E2668 #153A9E #1C4ED4 #4772E7

Accessibility & contrast

On white

9.86

#153A9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#153A9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153A9E

9.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153A9E	#FFFFFF	#000000	##FFFFFF
##153A9E	1.00	9.86	2.13	9.86
#FFFFFF	9.86	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AA1

Deuteranopia (green-blind)

#003D9C

Tritanopia (blue-blind)

#005466

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #153a9e;
/* rgb */ color: rgb(21, 58, 158);
/* oklch */ color: oklch(39.4% 0.168 264.3);

Tailwind

colors: {
  custom: {
    50: '#6e6fbc',
    500: '#153a9e',
    950: '#000000',
  },
}

SCSS

$custom: #153a9e;
$custom-light: #6e6fbc;
$custom-dark: #000000;

JSON

{
  "hex": "#153a9e",
  "rgb": {
    "r": 21,
    "g": 58,
    "b": 158
  },
  "hsl": {
    "h": 223.796,
    "s": 76.536,
    "l": 35.098
  },
  "oklch": {
    "l": 0.39397,
    "c": 0.16764,
    "h": 264.3
  },
  "luminance": 0.05654
}

Semantic roles & 50–950 ramp

primary

#153A9E

secondary

#C7A547

accent

#C035F3

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #153A9E

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

Preview Lab → · Contrast checker → · Palette generator →