#153D8D#153D8D

#153D8D is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.5% C 0.141 H 262.1°. Best body text is #FFFFFF at 10.08:1 contrast (WCAG AA passes).

Color values

HEX	#153D8D
RGB	rgb(21, 61, 141)
HSL	hsl(220, 74%, 32%)
HSV	hsv(220, 85%, 55%)
CMYK	cmyk(85.1%, 56.7%, 0%, 44.7%)
CIE-LAB	lab(27.90, 18.19, -48.21)
CIE-LCH	lch(27.90, 51.53, 290.68°)
OKLab	oklab(38.48% -0.0192 -0.1392)
OKLCH	oklch(38.48% 0.141 262.1)
XYZ	xyz(6.7840, 5.4192, 25.8826)
Luminance	0.0542 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153D8D #8D6515

analogous

#15798D #153D8D #29158D

triadic

#153D8D #8D153D #3D8D15

tetradic

#153D8D #8D1579 #8D6515 #158D29

square

#153D8D #8D1579 #8D6515 #158D29

split-complementary

#153D8D #8D2915 #798D15

monochromatic

#050F22 #0D2658 #153D8D #1D54C2 #3B72E2

Accessibility & contrast

On white

10.08

#153D8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#153D8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153D8D

10.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153D8D	#FFFFFF	#000000	##FFFFFF
##153D8D	1.00	10.08	2.08	10.08
#FFFFFF	10.08	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004890

Deuteranopia (green-blind)

#003D8B

Tritanopia (blue-blind)

#00515F

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #153d8d;
/* rgb */ color: rgb(21, 61, 141);
/* oklch */ color: oklch(38.5% 0.141 262.1);

Tailwind

colors: {
  custom: {
    50: '#6971af',
    500: '#153d8d',
    950: '#000000',
  },
}

SCSS

$custom: #153d8d;
$custom-light: #6971af;
$custom-dark: #000000;

JSON

{
  "hex": "#153d8d",
  "rgb": {
    "r": 21,
    "g": 61,
    "b": 141
  },
  "hsl": {
    "h": 220,
    "s": 74.074,
    "l": 31.765
  },
  "oklch": {
    "l": 0.38478,
    "c": 0.14053,
    "h": 262.1
  },
  "luminance": 0.0542
}

Semantic roles & 50–950 ramp

primary

#153D8D

secondary

#C1953D

accent

#B337F1

background

#F6F6FA

surface

#ECECF5

border

#C7C7CF

text

#080710

muted

#7A7A7F

Preview Lab

Preview with #153D8D

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

Preview Lab → · Contrast checker → · Palette generator →