#153B63#153B63

#153B63 is a dark, moderate cyan. Relative luminance 0.042; OKLCH L 34.7% C 0.082 H 252.3°. Best body text is #FFFFFF at 11.43:1 contrast (WCAG AA passes).

Color values

HEX	#153B63
RGB	rgb(21, 59, 99)
HSL	hsl(211, 65%, 24%)
HSV	hsv(211, 79%, 39%)
CMYK	cmyk(78.8%, 40.4%, 0%, 61.2%)
CIE-LAB	lab(24.28, 2.07, -27.47)
CIE-LCH	lch(24.28, 27.55, 274.31°)
OKLab	oklab(34.74% -0.0249 -0.0783)
OKLCH	oklch(34.74% 0.082 252.3)
XYZ	xyz(4.1245, 4.1877, 12.3929)
Luminance	0.0419 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153B63 #633D15

analogous

#156263 #153B63 #161563

triadic

#153B63 #63153B #3B6315

tetradic

#153B63 #631562 #633D15 #156316

square

#153B63 #631562 #633D15 #156316

split-complementary

#153B63 #631615 #626315

monochromatic

#050F19 #0A1D31 #153B63 #205995 #2A77C8

Accessibility & contrast

On white

11.43

#153B63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#153B63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153B63

11.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153B63	#FFFFFF	#000000	##FFFFFF
##153B63	1.00	11.43	1.84	11.43
#FFFFFF	11.43	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#283E65

Deuteranopia (green-blind)

#1D3662

Tritanopia (blue-blind)

#00444A

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #153b63;
/* rgb */ color: rgb(21, 59, 99);
/* oklch */ color: oklch(34.7% 0.082 252.3);

Tailwind

colors: {
  custom: {
    50: '#5f708f',
    500: '#153b63',
    950: '#000000',
  },
}

SCSS

$custom: #153b63;
$custom-light: #5f708f;
$custom-dark: #000000;

JSON

{
  "hex": "#153b63",
  "rgb": {
    "r": 21,
    "g": 59,
    "b": 99
  },
  "hsl": {
    "h": 210.769,
    "s": 65,
    "l": 23.529
  },
  "oklch": {
    "l": 0.34742,
    "c": 0.08216,
    "h": 252.3
  },
  "luminance": 0.04188
}

Semantic roles & 50–950 ramp

primary

#153B63

secondary

#9A6B3A

accent

#9640E8

background

#F5F6F8

surface

#EAECF0

border

#C6C7CB

text

#05070C

muted

#797A7D

Preview Lab

Preview with #153B63

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

Preview Lab → · Contrast checker → · Palette generator →