#153E66#153E66

#153E66 is a dark, moderate cyan. Relative luminance 0.046; OKLCH L 35.7% C 0.083 H 250.9°. Best body text is #FFFFFF at 10.98:1 contrast (WCAG AA passes).

Color values

HEX	#153E66
RGB	rgb(21, 62, 102)
HSL	hsl(210, 66%, 24%)
HSV	hsv(210, 79%, 40%)
CMYK	cmyk(79.4%, 39.2%, 0%, 60%)
CIE-LAB	lab(25.45, 1.25, -27.55)
CIE-LCH	lch(25.45, 27.58, 272.60°)
OKLab	oklab(35.72% -0.0272 -0.0785)
OKLCH	oklch(35.72% 0.083 250.9)
XYZ	xyz(4.4293, 4.5635, 13.2152)
Luminance	0.0456 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153E66 #663D15

analogous

#156666 #153E66 #151566

triadic

#153E66 #66153E #3E6615

tetradic

#153E66 #661566 #663D15 #156615

square

#153E66 #661566 #663D15 #156615

split-complementary

#153E66 #661515 #666615

monochromatic

#050F19 #0B1F33 #153E66 #1F5D99 #2A7CCC

Accessibility & contrast

On white

10.98

#153E66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#153E66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153E66

10.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153E66	#FFFFFF	#000000	##FFFFFF
##153E66	1.00	10.98	1.91	10.98
#FFFFFF	10.98	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B4068

Deuteranopia (green-blind)

#1F3965

Tritanopia (blue-blind)

#00474D

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #153e66;
/* rgb */ color: rgb(21, 62, 102);
/* oklch */ color: oklch(35.7% 0.083 250.9);

Tailwind

colors: {
  custom: {
    50: '#5f7292',
    500: '#153e66',
    950: '#000000',
  },
}

SCSS

$custom: #153e66;
$custom-light: #5f7292;
$custom-dark: #000000;

JSON

{
  "hex": "#153e66",
  "rgb": {
    "r": 21,
    "g": 62,
    "b": 102
  },
  "hsl": {
    "h": 209.63,
    "s": 65.854,
    "l": 24.118
  },
  "oklch": {
    "l": 0.35718,
    "c": 0.08305,
    "h": 250.9
  },
  "luminance": 0.04564
}

Semantic roles & 50–950 ramp

primary

#153E66

secondary

#9D6B3A

accent

#933FE9

background

#F5F6F9

surface

#EAECF1

border

#C6C7CB

text

#05080D

muted

#797B7E

Preview Lab

Preview with #153E66

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

Preview Lab → · Contrast checker → · Palette generator →