#21768B#21768B

#21768B is a mid, moderate cyan. Relative luminance 0.151; OKLCH L 52.6% C 0.084 H 218.3°. Best body text is #FFFFFF at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#21768B
RGB	rgb(33, 118, 139)
HSL	hsl(192, 62%, 34%)
HSV	hsv(192, 76%, 55%)
CMYK	cmyk(76.3%, 15.1%, 0%, 45.5%)
CIE-LAB	lab(45.83, -17.33, -18.62)
CIE-LCH	lch(45.83, 25.44, 227.06°)
OKLab	oklab(52.61% -0.0659 -0.052)
OKLCH	oklch(52.61% 0.084 218.3)
XYZ	xyz(11.7639, 15.1429, 26.7240)
Luminance	0.1514 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21768B #8B3621

analogous

#218B6B #21768B #21418B

triadic

#21768B #8B2176 #768B21

tetradic

#21768B #6B218B #8B3621 #418B21

square

#21768B #6B218B #8B3621 #418B21

split-complementary

#21768B #8B2141 #8B6B21

monochromatic

#0A2228 #154C5A #21768B #2DA0BC #51BBD6

Accessibility & contrast

On white

5.21

#21768B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.03

#21768B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21768B

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21768B	#FFFFFF	#000000	##FFFFFF
##21768B	1.00	5.21	4.03	5.21
#FFFFFF	5.21	1.00	21.00	1.00
#000000	4.03	21.00	1.00	21.00
##FFFFFF	5.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#69728C

Deuteranopia (green-blind)

#5A688B

Tritanopia (blue-blind)

#007D7D

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #21768b;
/* rgb */ color: rgb(33, 118, 139);
/* oklch */ color: oklch(52.6% 0.084 218.3);

Tailwind

colors: {
  custom: {
    50: '#6d9dad',
    500: '#21768b',
    950: '#000000',
  },
}

SCSS

$custom: #21768b;
$custom-light: #6d9dad;
$custom-dark: #000000;

JSON

{
  "hex": "#21768b",
  "rgb": {
    "r": 33,
    "g": 118,
    "b": 139
  },
  "hsl": {
    "h": 191.887,
    "s": 61.628,
    "l": 33.725
  },
  "oklch": {
    "l": 0.52605,
    "c": 0.08395,
    "h": 218.3
  },
  "luminance": 0.15144
}

Semantic roles & 50–950 ramp

primary

#21768B

secondary

#B9644F

accent

#6343E5

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#080E10

muted

#7B7E7F

Preview Lab

Preview with #21768B

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

Preview Lab → · Contrast checker → · Palette generator →