#21759B#21759B

#21759B is a mid, moderate cyan. Relative luminance 0.154; OKLCH L 53.1% C 0.097 H 232.9°. Best body text is #FFFFFF at 5.14:1 contrast (WCAG AA passes).

Color values

HEX	#21759B
RGB	rgb(33, 117, 155)
HSL	hsl(199, 65%, 37%)
HSV	hsv(199, 79%, 61%)
CMYK	cmyk(78.7%, 24.5%, 0%, 39.2%)
CIE-LAB	lab(46.19, -11.10, -27.52)
CIE-LCH	lch(46.19, 29.67, 248.03°)
OKLab	oklab(53.12% -0.0586 -0.0775)
OKLCH	oklch(53.12% 0.097 232.9)
XYZ	xyz(12.9025, 15.4109, 33.2986)
Luminance	0.1541 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21759B #9B4721

analogous

#219B84 #21759B #21389B

triadic

#21759B #9B2175 #759B21

tetradic

#21759B #84219B #9B4721 #389B21

square

#21759B #84219B #9B4721 #389B21

split-complementary

#21759B #9B2138 #9B8421

monochromatic

#0C2936 #164F69 #21759B #2C9BCD #5AB4DC

Accessibility & contrast

On white

5.14

#21759B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.08

#21759B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21759B

5.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21759B	#FFFFFF	#000000	##FFFFFF
##21759B	1.00	5.14	4.08	5.14
#FFFFFF	5.14	1.00	21.00	1.00
#000000	4.08	21.00	1.00	21.00
##FFFFFF	5.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#62749D

Deuteranopia (green-blind)

#52689A

Tritanopia (blue-blind)

#007F82

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #21759b;
/* rgb */ color: rgb(33, 117, 155);
/* oklch */ color: oklch(53.1% 0.097 232.9);

Tailwind

colors: {
  custom: {
    50: '#709cb8',
    500: '#21759b',
    950: '#000000',
  },
}

SCSS

$custom: #21759b;
$custom-light: #709cb8;
$custom-dark: #000000;

JSON

{
  "hex": "#21759b",
  "rgb": {
    "r": 33,
    "g": 117,
    "b": 155
  },
  "hsl": {
    "h": 198.689,
    "s": 64.894,
    "l": 36.863
  },
  "oklch": {
    "l": 0.5312,
    "c": 0.09719,
    "h": 232.9
  },
  "luminance": 0.15412
}

Semantic roles & 50–950 ramp

primary

#21759B

secondary

#C07858

accent

#7440E8

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090E11

muted

#7B7E80

Preview Lab

Preview with #21759B

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

Preview Lab → · Contrast checker → · Palette generator →