#153C54#153C54

#153C54 is a dark, moderate cyan. Relative luminance 0.040; OKLCH L 34.1% C 0.061 H 239.2°. Best body text is #FFFFFF at 11.63:1 contrast (WCAG AA passes).

Color values

HEX	#153C54
RGB	rgb(21, 60, 84)
HSL	hsl(203, 60%, 21%)
HSV	hsv(203, 75%, 33%)
CMYK	cmyk(75%, 28.6%, 0%, 67.1%)
CIE-LAB	lab(23.77, -4.70, -18.48)
CIE-LCH	lch(23.77, 19.06, 255.73°)
OKLab	oklab(34.06% -0.031 -0.052)
OKLCH	oklch(34.06% 0.061 239.2)
XYZ	xyz(3.5247, 4.0309, 8.9781)
Luminance	0.0403 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153C54 #542D15

analogous

#15544C #153C54 #151C54

triadic

#153C54 #54153C #3C5415

tetradic

#153C54 #4C1554 #542D15 #1C5415

square

#153C54 #4C1554 #542D15 #1C5415

split-complementary

#153C54 #54151C #544C15

monochromatic

#061118 #091923 #153C54 #215F85 #2D82B6

Accessibility & contrast

On white

11.63

#153C54 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#153C54 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153C54

11.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153C54	#FFFFFF	#000000	##FFFFFF
##153C54	1.00	11.63	1.81	11.63
#FFFFFF	11.63	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#313C55

Deuteranopia (green-blind)

#283654

Tritanopia (blue-blind)

#004244

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #153c54;
/* rgb */ color: rgb(21, 60, 84);
/* oklch */ color: oklch(34.1% 0.061 239.2);

Tailwind

colors: {
  custom: {
    50: '#5b7184',
    500: '#153c54',
    950: '#000000',
  },
}

SCSS

$custom: #153c54;
$custom-light: #5b7184;
$custom-dark: #000000;

JSON

{
  "hex": "#153c54",
  "rgb": {
    "r": 21,
    "g": 60,
    "b": 84
  },
  "hsl": {
    "h": 202.857,
    "s": 60,
    "l": 20.588
  },
  "oklch": {
    "l": 0.34064,
    "c": 0.0606,
    "h": 239.2
  },
  "luminance": 0.04031
}

Semantic roles & 50–950 ramp

primary

#153C54

secondary

#8C5939

accent

#8145E3

background

#F5F6F8

surface

#E9ECEF

border

#C5C7CA

text

#04070B

muted

#797A7C

Preview Lab

Preview with #153C54

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

Preview Lab → · Contrast checker → · Palette generator →