#21758C#21758C

#21758C is a mid, moderate cyan. Relative luminance 0.149; OKLCH L 52.4% C 0.085 H 220.4°. Best body text is #FFFFFF at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#21758C
RGB	rgb(33, 117, 140)
HSL	hsl(193, 62%, 34%)
HSV	hsv(193, 76%, 55%)
CMYK	cmyk(76.4%, 16.4%, 0%, 45.1%)
CIE-LAB	lab(45.55, -16.43, -19.64)
CIE-LCH	lch(45.55, 25.61, 230.09°)
OKLab	oklab(52.39% -0.0644 -0.0549)
OKLCH	oklch(52.39% 0.085 220.4)
XYZ	xyz(11.7201, 14.9380, 27.0715)
Luminance	0.1494 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21758C #8C3821

analogous

#218C6E #21758C #21408C

triadic

#21758C #8C2175 #758C21

tetradic

#21758C #6E218C #8C3821 #408C21

square

#21758C #6E218C #8C3821 #408C21

split-complementary

#21758C #8C2140 #8C6E21

monochromatic

#0A2229 #154C5A #21758C #2D9EBE #51BAD6

Accessibility & contrast

On white

5.27

#21758C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.99

#21758C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21758C

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21758C	#FFFFFF	#000000	##FFFFFF
##21758C	1.00	5.27	3.99	5.27
#FFFFFF	5.27	1.00	21.00	1.00
#000000	3.99	21.00	1.00	21.00
##FFFFFF	5.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#67728D

Deuteranopia (green-blind)

#59678C

Tritanopia (blue-blind)

#007C7C

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #21758c;
/* rgb */ color: rgb(33, 117, 140);
/* oklch */ color: oklch(52.4% 0.085 220.4);

Tailwind

colors: {
  custom: {
    50: '#6d9dad',
    500: '#21758c',
    950: '#000000',
  },
}

SCSS

$custom: #21758c;
$custom-light: #6d9dad;
$custom-dark: #000000;

JSON

{
  "hex": "#21758c",
  "rgb": {
    "r": 33,
    "g": 117,
    "b": 140
  },
  "hsl": {
    "h": 192.897,
    "s": 61.85,
    "l": 33.922
  },
  "oklch": {
    "l": 0.52393,
    "c": 0.08468,
    "h": 220.4
  },
  "luminance": 0.14939
}

Semantic roles & 50–950 ramp

primary

#21758C

secondary

#B9664F

accent

#6643E5

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#080E10

muted

#7B7E7F

Preview Lab

Preview with #21758C

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

Preview Lab → · Contrast checker → · Palette generator →