#21687C#21687C

#21687C is a mid, moderate cyan. Relative luminance 0.117; OKLCH L 48.3% C 0.075 H 220.5°. Best body text is #FFFFFF at 6.30:1 contrast (WCAG AA passes).

Color values

HEX	#21687C
RGB	rgb(33, 104, 124)
HSL	hsl(193, 58%, 31%)
HSV	hsv(193, 73%, 49%)
CMYK	cmyk(73.4%, 16.1%, 0%, 51.4%)
CIE-LAB	lab(40.70, -14.71, -17.49)
CIE-LCH	lch(40.70, 22.85, 229.94°)
OKLab	oklab(48.28% -0.0573 -0.0488)
OKLCH	oklch(48.28% 0.075 220.5)
XYZ	xyz(9.2141, 11.6781, 20.8334)
Luminance	0.1168 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21687C #7C3521

analogous

#217C62 #21687C #213A7C

triadic

#21687C #7C2168 #687C21

tetradic

#21687C #62217C #7C3521 #3A7C21

square

#21687C #62217C #7C3521 #3A7C21

split-complementary

#21687C #7C213A #7C6221

monochromatic

#07171B #143F4C #21687C #2E91AC #49B1CF

Accessibility & contrast

On white

6.30

#21687C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#21687C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21687C

6.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21687C	#FFFFFF	#000000	##FFFFFF
##21687C	1.00	6.30	3.34	6.30
#FFFFFF	6.30	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C657D

Deuteranopia (green-blind)

#4F5C7C

Tritanopia (blue-blind)

#006E6E

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #21687c;
/* rgb */ color: rgb(33, 104, 124);
/* oklch */ color: oklch(48.3% 0.075 220.5);

Tailwind

colors: {
  custom: {
    50: '#6a93a2',
    500: '#21687c',
    950: '#000000',
  },
}

SCSS

$custom: #21687c;
$custom-light: #6a93a2;
$custom-dark: #000000;

JSON

{
  "hex": "#21687c",
  "rgb": {
    "r": 33,
    "g": 104,
    "b": 124
  },
  "hsl": {
    "h": 193.187,
    "s": 57.962,
    "l": 30.784
  },
  "oklch": {
    "l": 0.48284,
    "c": 0.07527,
    "h": 220.5
  },
  "luminance": 0.11679
}

Semantic roles & 50–950 ramp

primary

#21687C

secondary

#AF604A

accent

#6947E1

background

#F6F9F9

surface

#ECF1F2

border

#C7CBCC

text

#070D0F

muted

#7A7E7E

Preview Lab

Preview with #21687C

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

Preview Lab → · Contrast checker → · Palette generator →