#153F66#153F66

#153F66 is a dark, moderate cyan. Relative luminance 0.047; OKLCH L 36.0% C 0.082 H 249.9°. Best body text is #FFFFFF at 10.85:1 contrast (WCAG AA passes).

Color values

HEX	#153F66
RGB	rgb(21, 63, 102)
HSL	hsl(209, 66%, 24%)
HSV	hsv(209, 79%, 40%)
CMYK	cmyk(79.4%, 38.2%, 0%, 60%)
CIE-LAB	lab(25.78, 0.57, -27.03)
CIE-LCH	lch(25.78, 27.04, 271.21°)
OKLab	oklab(35.98% -0.0282 -0.0769)
OKLCH	oklch(35.98% 0.082 249.9)
XYZ	xyz(4.4841, 4.6732, 13.2335)
Luminance	0.0467 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153F66 #663C15

analogous

#156665 #153F66 #151666

triadic

#153F66 #66153F #3F6615

tetradic

#153F66 #651566 #663C15 #166615

square

#153F66 #651566 #663C15 #166615

split-complementary

#153F66 #661516 #666515

monochromatic

#051019 #0B2033 #153F66 #1F5E99 #2A7ECC

Accessibility & contrast

On white

10.85

#153F66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#153F66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153F66

10.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153F66	#FFFFFF	#000000	##FFFFFF
##153F66	1.00	10.85	1.93	10.85
#FFFFFF	10.85	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D4168

Deuteranopia (green-blind)

#213A65

Tritanopia (blue-blind)

#00484D

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #153f66;
/* rgb */ color: rgb(21, 63, 102);
/* oklch */ color: oklch(36.0% 0.082 249.9);

Tailwind

colors: {
  custom: {
    50: '#5f7392',
    500: '#153f66',
    950: '#000000',
  },
}

SCSS

$custom: #153f66;
$custom-light: #5f7392;
$custom-dark: #000000;

JSON

{
  "hex": "#153f66",
  "rgb": {
    "r": 21,
    "g": 63,
    "b": 102
  },
  "hsl": {
    "h": 208.889,
    "s": 65.854,
    "l": 24.118
  },
  "oklch": {
    "l": 0.35976,
    "c": 0.08193,
    "h": 249.9
  },
  "luminance": 0.04674
}

Semantic roles & 50–950 ramp

primary

#153F66

secondary

#9D6A3A

accent

#913FE9

background

#F5F6F9

surface

#EAECF1

border

#C6C7CB

text

#05080D

muted

#797B7E

Preview Lab

Preview with #153F66

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

Preview Lab → · Contrast checker → · Palette generator →