#15637C#15637C

#15637C is a mid, moderate cyan. Relative luminance 0.105; OKLCH L 46.7% C 0.081 H 225.0°. Best body text is #FFFFFF at 6.76:1 contrast (WCAG AA passes).

Color values

HEX	#15637C
RGB	rgb(21, 99, 124)
HSL	hsl(195, 71%, 28%)
HSV	hsv(195, 83%, 49%)
CMYK	cmyk(83.1%, 20.2%, 0%, 51.4%)
CIE-LAB	lab(38.79, -13.38, -20.45)
CIE-LCH	lch(38.79, 24.44, 236.81°)
OKLab	oklab(46.67% -0.0575 -0.0574)
OKLCH	oklch(46.67% 0.081 225)
XYZ	xyz(8.4077, 10.5373, 20.6557)
Luminance	0.1054 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15637C #7C2E15

analogous

#157C61 #15637C #152F7C

triadic

#15637C #7C1563 #637C15

tetradic

#15637C #61157C #7C2E15 #2F7C15

square

#15637C #61157C #7C2E15 #2F7C15

split-complementary

#15637C #7C152F #7C6115

monochromatic

#04151A #0C3948 #15637C #1E8DB0 #30B2DC

Accessibility & contrast

On white

6.76

#15637C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#15637C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #15637C

6.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15637C	#FFFFFF	#000000	##FFFFFF
##15637C	1.00	6.76	3.11	6.76
#FFFFFF	6.76	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#55617D

Deuteranopia (green-blind)

#48577C

Tritanopia (blue-blind)

#006A6B

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #15637c;
/* rgb */ color: rgb(21, 99, 124);
/* oklch */ color: oklch(46.7% 0.081 225.0);

Tailwind

colors: {
  custom: {
    50: '#668fa2',
    500: '#15637c',
    950: '#000000',
  },
}

SCSS

$custom: #15637c;
$custom-light: #668fa2;
$custom-dark: #000000;

JSON

{
  "hex": "#15637c",
  "rgb": {
    "r": 21,
    "g": 99,
    "b": 124
  },
  "hsl": {
    "h": 194.563,
    "s": 71.034,
    "l": 28.431
  },
  "oklch": {
    "l": 0.46673,
    "c": 0.08123,
    "h": 225
  },
  "luminance": 0.10538
}

Semantic roles & 50–950 ramp

primary

#15637C

secondary

#B1583C

accent

#663AEE

background

#F6F8F9

surface

#EBF0F2

border

#C6CBCC

text

#070C0F

muted

#7A7D7E

Preview Lab

Preview with #15637C

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

Preview Lab → · Contrast checker → · Palette generator →