#153E8D#153E8D

#153E8D is a dark, vivid blue. Relative luminance 0.055; OKLCH L 38.7% C 0.139 H 261.8°. Best body text is #FFFFFF at 9.97:1 contrast (WCAG AA passes).

Color values

HEX	#153E8D
RGB	rgb(21, 62, 141)
HSL	hsl(220, 74%, 32%)
HSV	hsv(220, 85%, 55%)
CMYK	cmyk(85.1%, 56%, 0%, 44.7%)
CIE-LAB	lab(28.19, 17.50, -47.74)
CIE-LCH	lch(28.19, 50.84, 290.13°)
OKLab	oklab(38.7% -0.0199 -0.1378)
OKLCH	oklch(38.7% 0.139 261.8)
XYZ	xyz(6.8379, 5.5269, 25.9006)
Luminance	0.0553 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153E8D #8D6415

analogous

#157A8D #153E8D #28158D

triadic

#153E8D #8D153E #3E8D15

tetradic

#153E8D #8D157A #8D6415 #158D28

square

#153E8D #8D157A #8D6415 #158D28

split-complementary

#153E8D #8D2815 #7A8D15

monochromatic

#050F22 #0D2758 #153E8D #1D55C2 #3B74E2

Accessibility & contrast

On white

9.97

#153E8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#153E8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153E8D

9.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153E8D	#FFFFFF	#000000	##FFFFFF
##153E8D	1.00	9.97	2.11	9.97
#FFFFFF	9.97	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004890

Deuteranopia (green-blind)

#003D8B

Tritanopia (blue-blind)

#00525F

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #153e8d;
/* rgb */ color: rgb(21, 62, 141);
/* oklch */ color: oklch(38.7% 0.139 261.8);

Tailwind

colors: {
  custom: {
    50: '#6972af',
    500: '#153e8d',
    950: '#000000',
  },
}

SCSS

$custom: #153e8d;
$custom-light: #6972af;
$custom-dark: #000000;

JSON

{
  "hex": "#153e8d",
  "rgb": {
    "r": 21,
    "g": 62,
    "b": 141
  },
  "hsl": {
    "h": 219.5,
    "s": 74.074,
    "l": 31.765
  },
  "oklch": {
    "l": 0.38697,
    "c": 0.13924,
    "h": 261.8
  },
  "luminance": 0.05528
}

Semantic roles & 50–950 ramp

primary

#153E8D

secondary

#C1943D

accent

#B137F1

background

#F6F6FA

surface

#ECECF5

border

#C7C7CF

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #153E8D

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

Preview Lab → · Contrast checker → · Palette generator →