#21687F#21687F

#21687F is a mid, moderate cyan. Relative luminance 0.118; OKLCH L 48.4% C 0.077 H 223.7°. Best body text is #FFFFFF at 6.27:1 contrast (WCAG AA passes).

Color values

HEX	#21687F
RGB	rgb(33, 104, 127)
HSL	hsl(195, 59%, 31%)
HSV	hsv(195, 74%, 50%)
CMYK	cmyk(74%, 18.1%, 0%, 50.2%)
CIE-LAB	lab(40.82, -13.65, -19.11)
CIE-LCH	lch(40.82, 23.49, 234.46°)
OKLab	oklab(48.43% -0.056 -0.0535)
OKLCH	oklch(48.43% 0.077 223.7)
XYZ	xyz(9.4067, 11.7552, 21.8478)
Luminance	0.1176 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21687F #7F3821

analogous

#217F67 #21687F #21397F

triadic

#21687F #7F2168 #687F21

tetradic

#21687F #67217F #7F3821 #397F21

square

#21687F #67217F #7F3821 #397F21

split-complementary

#21687F #7F2139 #7F6721

monochromatic

#08181E #14404E #21687F #2E90B0 #4AAFD0

Accessibility & contrast

On white

6.27

#21687F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.35

#21687F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21687F

6.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21687F	#FFFFFF	#000000	##FFFFFF
##21687F	1.00	6.27	3.35	6.27
#FFFFFF	6.27	1.00	21.00	1.00
#000000	3.35	21.00	1.00	21.00
##FFFFFF	6.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B6680

Deuteranopia (green-blind)

#4E5C7F

Tritanopia (blue-blind)

#006F6F

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #21687f;
/* rgb */ color: rgb(33, 104, 127);
/* oklch */ color: oklch(48.4% 0.077 223.7);

Tailwind

colors: {
  custom: {
    50: '#6a93a4',
    500: '#21687f',
    950: '#000000',
  },
}

SCSS

$custom: #21687f;
$custom-light: #6a93a4;
$custom-dark: #000000;

JSON

{
  "hex": "#21687f",
  "rgb": {
    "r": 33,
    "g": 104,
    "b": 127
  },
  "hsl": {
    "h": 194.681,
    "s": 58.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.48425,
    "c": 0.07744,
    "h": 223.7
  },
  "luminance": 0.11756
}

Semantic roles & 50–950 ramp

primary

#21687F

secondary

#B2634A

accent

#6C46E2

background

#F6F9FA

surface

#ECF1F4

border

#C7CBCE

text

#070D0F

muted

#7A7E7F

Preview Lab

Preview with #21687F

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

Preview Lab → · Contrast checker → · Palette generator →