#153B53#153B53

#153B53 is a dark, moderate cyan. Relative luminance 0.039; OKLCH L 33.7% C 0.060 H 239.8°. Best body text is #FFFFFF at 11.78:1 contrast (WCAG AA passes).

Color values

HEX	#153B53
RGB	rgb(21, 59, 83)
HSL	hsl(203, 60%, 20%)
HSV	hsv(203, 75%, 33%)
CMYK	cmyk(74.7%, 28.9%, 0%, 67.5%)
CIE-LAB	lab(23.38, -4.43, -18.44)
CIE-LCH	lch(23.38, 18.96, 256.48°)
OKLab	oklab(33.73% -0.0302 -0.0519)
OKLCH	oklch(33.73% 0.06 239.8)
XYZ	xyz(3.4340, 3.9115, 8.7560)
Luminance	0.0391 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153B53 #532D15

analogous

#15534C #153B53 #151C53

triadic

#153B53 #53153B #3B5315

tetradic

#153B53 #4C1553 #532D15 #1C5315

square

#153B53 #4C1553 #532D15 #1C5315

split-complementary

#153B53 #53151C #534C15

monochromatic

#061118 #091822 #153B53 #215E84 #2E80B5

Accessibility & contrast

On white

11.78

#153B53 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#153B53 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153B53

11.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153B53	#FFFFFF	#000000	##FFFFFF
##153B53	1.00	11.78	1.78	11.78
#FFFFFF	11.78	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#303B54

Deuteranopia (green-blind)

#273553

Tritanopia (blue-blind)

#004143

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #153b53;
/* rgb */ color: rgb(21, 59, 83);
/* oklch */ color: oklch(33.7% 0.060 239.8);

Tailwind

colors: {
  custom: {
    50: '#5b7083',
    500: '#153b53',
    950: '#000000',
  },
}

SCSS

$custom: #153b53;
$custom-light: #5b7083;
$custom-dark: #000000;

JSON

{
  "hex": "#153b53",
  "rgb": {
    "r": 21,
    "g": 59,
    "b": 83
  },
  "hsl": {
    "h": 203.226,
    "s": 59.615,
    "l": 20.392
  },
  "oklch": {
    "l": 0.33733,
    "c": 0.0601,
    "h": 239.8
  },
  "luminance": 0.03912
}

Semantic roles & 50–950 ramp

primary

#153B53

secondary

#8B5939

accent

#8245E3

background

#F5F6F8

surface

#E9ECEF

border

#C5C7CA

text

#04070A

muted

#797A7C

Preview Lab

Preview with #153B53

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

Preview Lab → · Contrast checker → · Palette generator →