#153F8D#153F8D

#153F8D is a dark, vivid blue. Relative luminance 0.056; OKLCH L 38.9% C 0.138 H 261.4°. Best body text is #FFFFFF at 9.87:1 contrast (WCAG AA passes).

Color values

HEX	#153F8D
RGB	rgb(21, 63, 141)
HSL	hsl(219, 74%, 32%)
HSV	hsv(219, 85%, 55%)
CMYK	cmyk(85.1%, 55.3%, 0%, 44.7%)
CIE-LAB	lab(28.48, 16.80, -47.27)
CIE-LCH	lch(28.48, 50.16, 289.56°)
OKLab	oklab(38.92% -0.0206 -0.1364)
OKLCH	oklch(38.92% 0.138 261.4)
XYZ	xyz(6.8927, 5.6367, 25.9188)
Luminance	0.0564 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153F8D #8D6315

analogous

#157B8D #153F8D #27158D

triadic

#153F8D #8D153F #3F8D15

tetradic

#153F8D #8D157B #8D6315 #158D27

square

#153F8D #8D157B #8D6315 #158D27

split-complementary

#153F8D #8D2715 #7B8D15

monochromatic

#050F22 #0D2758 #153F8D #1D57C2 #3B75E2

Accessibility & contrast

On white

9.87

#153F8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#153F8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153F8D

9.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153F8D	#FFFFFF	#000000	##FFFFFF
##153F8D	1.00	9.87	2.13	9.87
#FFFFFF	9.87	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004990

Deuteranopia (green-blind)

#003E8B

Tritanopia (blue-blind)

#00525F

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #153f8d;
/* rgb */ color: rgb(21, 63, 141);
/* oklch */ color: oklch(38.9% 0.138 261.4);

Tailwind

colors: {
  custom: {
    50: '#6973af',
    500: '#153f8d',
    950: '#000000',
  },
}

SCSS

$custom: #153f8d;
$custom-light: #6973af;
$custom-dark: #000000;

JSON

{
  "hex": "#153f8d",
  "rgb": {
    "r": 21,
    "g": 63,
    "b": 141
  },
  "hsl": {
    "h": 219,
    "s": 74.074,
    "l": 31.765
  },
  "oklch": {
    "l": 0.38918,
    "c": 0.13795,
    "h": 261.4
  },
  "luminance": 0.05638
}

Semantic roles & 50–950 ramp

primary

#153F8D

secondary

#C1933D

accent

#B037F1

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #153F8D

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

Preview Lab → · Contrast checker → · Palette generator →