#153D55#153D55

#153D55 is a dark, moderate cyan. Relative luminance 0.042; OKLCH L 34.4% C 0.061 H 238.6°. Best body text is #FFFFFF at 11.47:1 contrast (WCAG AA passes).

Color values

HEX	#153D55
RGB	rgb(21, 61, 85)
HSL	hsl(203, 60%, 21%)
HSV	hsv(203, 75%, 33%)
CMYK	cmyk(75.3%, 28.2%, 0%, 66.7%)
CIE-LAB	lab(24.17, -4.96, -18.52)
CIE-LCH	lch(24.17, 19.17, 255.00°)
OKLab	oklab(34.39% -0.0318 -0.0521)
OKLCH	oklch(34.39% 0.061 238.6)
XYZ	xyz(3.6171, 4.1524, 9.2034)
Luminance	0.0415 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153D55 #552D15

analogous

#15554D #153D55 #151D55

triadic

#153D55 #55153D #3D5515

tetradic

#153D55 #4D1555 #552D15 #1D5515

square

#153D55 #4D1555 #552D15 #1D5515

split-complementary

#153D55 #55151D #554D15

monochromatic

#061219 #091A24 #153D55 #216086 #2D83B7

Accessibility & contrast

On white

11.47

#153D55 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#153D55 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153D55

11.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153D55	#FFFFFF	#000000	##FFFFFF
##153D55	1.00	11.47	1.83	11.47
#FFFFFF	11.47	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#323D56

Deuteranopia (green-blind)

#293755

Tritanopia (blue-blind)

#004345

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #153d55;
/* rgb */ color: rgb(21, 61, 85);
/* oklch */ color: oklch(34.4% 0.061 238.6);

Tailwind

colors: {
  custom: {
    50: '#5c7285',
    500: '#153d55',
    950: '#000000',
  },
}

SCSS

$custom: #153d55;
$custom-light: #5c7285;
$custom-dark: #000000;

JSON

{
  "hex": "#153d55",
  "rgb": {
    "r": 21,
    "g": 61,
    "b": 85
  },
  "hsl": {
    "h": 202.5,
    "s": 60.377,
    "l": 20.784
  },
  "oklch": {
    "l": 0.34395,
    "c": 0.06109,
    "h": 238.6
  },
  "luminance": 0.04153
}

Semantic roles & 50–950 ramp

primary

#153D55

secondary

#8D5839

accent

#8044E4

background

#F5F6F8

surface

#E9ECEF

border

#C5C7CA

text

#04080B

muted

#797B7C

Preview Lab

Preview with #153D55

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

Preview Lab → · Contrast checker → · Palette generator →