#21738E#21738E

#21738E is a mid, moderate cyan. Relative luminance 0.145; OKLCH L 52.0% C 0.086 H 224.6°. Best body text is #FFFFFF at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#21738E
RGB	rgb(33, 115, 142)
HSL	hsl(195, 62%, 34%)
HSV	hsv(195, 77%, 56%)
CMYK	cmyk(76.8%, 19%, 0%, 44.3%)
CIE-LAB	lab(44.99, -14.61, -21.69)
CIE-LCH	lch(44.99, 26.15, 236.03°)
OKLab	oklab(51.97% -0.0616 -0.0608)
OKLCH	oklch(51.97% 0.087 224.6)
XYZ	xyz(11.6384, 14.5364, 27.7784)
Luminance	0.1454 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21738E #8E3C21

analogous

#218E73 #21738E #213D8E

triadic

#21738E #8E2173 #738E21

tetradic

#21738E #73218E #8E3C21 #3D8E21

square

#21738E #73218E #8E3C21 #3D8E21

split-complementary

#21738E #8E213D #8E7321

monochromatic

#0A232B #154B5C #21738E #2D9BC0 #52B6D7

Accessibility & contrast

On white

5.37

#21738E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.91

#21738E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21738E

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21738E	#FFFFFF	#000000	##FFFFFF
##21738E	1.00	5.37	3.91	5.37
#FFFFFF	5.37	1.00	21.00	1.00
#000000	3.91	21.00	1.00	21.00
##FFFFFF	5.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#64708F

Deuteranopia (green-blind)

#55668E

Tritanopia (blue-blind)

#007B7C

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #21738e;
/* rgb */ color: rgb(33, 115, 142);
/* oklch */ color: oklch(52.0% 0.086 224.6);

Tailwind

colors: {
  custom: {
    50: '#6e9baf',
    500: '#21738e',
    950: '#000000',
  },
}

SCSS

$custom: #21738e;
$custom-light: #6e9baf;
$custom-dark: #000000;

JSON

{
  "hex": "#21738e",
  "rgb": {
    "r": 33,
    "g": 115,
    "b": 142
  },
  "hsl": {
    "h": 194.862,
    "s": 62.286,
    "l": 34.314
  },
  "oklch": {
    "l": 0.51974,
    "c": 0.0865,
    "h": 224.6
  },
  "luminance": 0.14538
}

Semantic roles & 50–950 ramp

primary

#21738E

secondary

#BA6B50

accent

#6B42E5

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#080E10

muted

#7B7E7F

Preview Lab

Preview with #21738E

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

Preview Lab → · Contrast checker → · Palette generator →