#153B66#153B66

#153B66 is a dark, moderate cyan. Relative luminance 0.042; OKLCH L 34.9% C 0.087 H 253.8°. Best body text is #FFFFFF at 11.36:1 contrast (WCAG AA passes).

Color values

HEX	#153B66
RGB	rgb(21, 59, 102)
HSL	hsl(212, 66%, 24%)
HSV	hsv(212, 79%, 40%)
CMYK	cmyk(79.4%, 42.2%, 0%, 60%)
CIE-LAB	lab(24.47, 3.32, -29.12)
CIE-LCH	lch(24.47, 29.30, 276.50°)
OKLab	oklab(34.95% -0.0241 -0.0831)
OKLCH	oklch(34.95% 0.087 253.8)
XYZ	xyz(4.2706, 4.2462, 13.1623)
Luminance	0.0425 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153B66 #664015

analogous

#156466 #153B66 #181566

triadic

#153B66 #66153B #3B6615

tetradic

#153B66 #661564 #664015 #156618

square

#153B66 #661564 #664015 #156618

split-complementary

#153B66 #661815 #646615

monochromatic

#050F19 #0B1E33 #153B66 #1F5899 #2A76CC

Accessibility & contrast

On white

11.36

#153B66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#153B66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153B66

11.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153B66	#FFFFFF	#000000	##FFFFFF
##153B66	1.00	11.36	1.85	11.36
#FFFFFF	11.36	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#273E68

Deuteranopia (green-blind)

#1A3765

Tritanopia (blue-blind)

#00454B

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #153b66;
/* rgb */ color: rgb(21, 59, 102);
/* oklch */ color: oklch(34.9% 0.087 253.8);

Tailwind

colors: {
  custom: {
    50: '#5f7092',
    500: '#153b66',
    950: '#000000',
  },
}

SCSS

$custom: #153b66;
$custom-light: #5f7092;
$custom-dark: #000000;

JSON

{
  "hex": "#153b66",
  "rgb": {
    "r": 21,
    "g": 59,
    "b": 102
  },
  "hsl": {
    "h": 211.852,
    "s": 65.854,
    "l": 24.118
  },
  "oklch": {
    "l": 0.34949,
    "c": 0.08654,
    "h": 253.8
  },
  "luminance": 0.04247
}

Semantic roles & 50–950 ramp

primary

#153B66

secondary

#9D6E3A

accent

#993FE9

background

#F5F6F9

surface

#EAECF1

border

#C6C7CB

text

#05070D

muted

#797A7E

Preview Lab

Preview with #153B66

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

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