#21758A#21758A

#21758A is a mid, moderate cyan. Relative luminance 0.149; OKLCH L 52.3% C 0.083 H 218.5°. Best body text is #FFFFFF at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#21758A
RGB	rgb(33, 117, 138)
HSL	hsl(192, 61%, 34%)
HSV	hsv(192, 76%, 54%)
CMYK	cmyk(76.1%, 15.2%, 0%, 45.9%)
CIE-LAB	lab(45.47, -17.12, -18.58)
CIE-LCH	lch(45.47, 25.26, 227.33°)
OKLab	oklab(52.3% -0.0653 -0.0519)
OKLCH	oklch(52.3% 0.083 218.5)
XYZ	xyz(11.5740, 14.8795, 26.3019)
Luminance	0.1488 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21758A #8A3621

analogous

#218A6A #21758A #21408A

triadic

#21758A #8A2175 #758A21

tetradic

#21758A #6A218A #8A3621 #408A21

square

#21758A #6A218A #8A3621 #408A21

split-complementary

#21758A #8A2140 #8A6A21

monochromatic

#092127 #154B59 #21758A #2D9FBB #50BBD5

Accessibility & contrast

On white

5.28

#21758A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.98

#21758A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21758A

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21758A	#FFFFFF	#000000	##FFFFFF
##21758A	1.00	5.28	3.98	5.28
#FFFFFF	5.28	1.00	21.00	1.00
#000000	3.98	21.00	1.00	21.00
##FFFFFF	5.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#68728B

Deuteranopia (green-blind)

#59678A

Tritanopia (blue-blind)

#007C7C

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #21758a;
/* rgb */ color: rgb(33, 117, 138);
/* oklch */ color: oklch(52.3% 0.083 218.5);

Tailwind

colors: {
  custom: {
    50: '#6d9dac',
    500: '#21758a',
    950: '#000000',
  },
}

SCSS

$custom: #21758a;
$custom-light: #6d9dac;
$custom-dark: #000000;

JSON

{
  "hex": "#21758a",
  "rgb": {
    "r": 33,
    "g": 117,
    "b": 138
  },
  "hsl": {
    "h": 192,
    "s": 61.404,
    "l": 33.529
  },
  "oklch": {
    "l": 0.52301,
    "c": 0.08339,
    "h": 218.5
  },
  "luminance": 0.14881
}

Semantic roles & 50–950 ramp

primary

#21758A

secondary

#B9644E

accent

#6443E5

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#080E10

muted

#7B7E7F

Preview Lab

Preview with #21758A

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

Preview Lab → · Contrast checker → · Palette generator →