#21639F#21639F

#21639F is a mid, moderate cyan. Relative luminance 0.117; OKLCH L 48.9% C 0.116 H 249.9°. Best body text is #FFFFFF at 6.27:1 contrast (WCAG AA passes).

Color values

HEX	#21639F
RGB	rgb(33, 99, 159)
HSL	hsl(209, 66%, 38%)
HSV	hsv(209, 79%, 62%)
CMYK	cmyk(79.2%, 37.7%, 0%, 37.6%)
CIE-LAB	lab(40.81, 1.29, -38.35)
CIE-LCH	lch(40.81, 38.37, 271.93°)
OKLab	oklab(48.93% -0.0401 -0.1093)
OKLCH	oklch(48.93% 0.116 249.9)
XYZ	xyz(11.3447, 11.7489, 34.4640)
Luminance	0.1175 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21639F #9F5D21

analogous

#219F9C #21639F #21249F

triadic

#21639F #9F2163 #639F21

tetradic

#21639F #9C219F #9F5D21 #249F21

square

#21639F #9C219F #9F5D21 #249F21

split-complementary

#21639F #9F2124 #9F9C21

monochromatic

#0C243A #16436C #21639F #2C83D2 #5DA0DD

Accessibility & contrast

On white

6.27

#21639F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.35

#21639F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21639F

6.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21639F	#FFFFFF	#000000	##FFFFFF
##21639F	1.00	6.27	3.35	6.27
#FFFFFF	6.27	1.00	21.00	1.00
#000000	3.35	21.00	1.00	21.00
##FFFFFF	6.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4766A1

Deuteranopia (green-blind)

#345B9E

Tritanopia (blue-blind)

#007179

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #21639f;
/* rgb */ color: rgb(33, 99, 159);
/* oklch */ color: oklch(48.9% 0.116 249.9);

Tailwind

colors: {
  custom: {
    50: '#708fbc',
    500: '#21639f',
    950: '#000000',
  },
}

SCSS

$custom: #21639f;
$custom-light: #708fbc;
$custom-dark: #000000;

JSON

{
  "hex": "#21639f",
  "rgb": {
    "r": 33,
    "g": 99,
    "b": 159
  },
  "hsl": {
    "h": 208.571,
    "s": 65.625,
    "l": 37.647
  },
  "oklch": {
    "l": 0.48931,
    "c": 0.11642,
    "h": 249.9
  },
  "luminance": 0.1175
}

Semantic roles & 50–950 ramp

primary

#21639F

secondary

#C28B5A

accent

#903FE9

background

#F7F8FB

surface

#EDF0F6

border

#C8CBD0

text

#090C12

muted

#7B7D81

Preview Lab

Preview with #21639F

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

Preview Lab → · Contrast checker → · Palette generator →