#21639A#21639A

#21639A is a mid, moderate cyan. Relative luminance 0.116; OKLCH L 48.6% C 0.110 H 247.8°. Best body text is #FFFFFF at 6.33:1 contrast (WCAG AA passes).

Color values

HEX	#21639A
RGB	rgb(33, 99, 154)
HSL	hsl(207, 65%, 37%)
HSV	hsv(207, 79%, 60%)
CMYK	cmyk(78.6%, 35.7%, 0%, 39.6%)
CIE-LAB	lab(40.54, -0.64, -35.80)
CIE-LCH	lch(40.54, 35.81, 268.98°)
OKLab	oklab(48.63% -0.0415 -0.1019)
OKLCH	oklch(48.63% 0.11 247.8)
XYZ	xyz(10.9195, 11.5788, 32.2250)
Luminance	0.1158 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21639A #9A5821

analogous

#219A95 #21639A #21269A

triadic

#21639A #9A2163 #639A21

tetradic

#21639A #95219A #9A5821 #269A21

square

#21639A #95219A #9A5821 #269A21

split-complementary

#21639A #9A2126 #9A9521

monochromatic

#0B2235 #164368 #21639A #2C83CC #5AA1DC

Accessibility & contrast

On white

6.33

#21639A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.32

#21639A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21639A

6.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21639A	#FFFFFF	#000000	##FFFFFF
##21639A	1.00	6.33	3.32	6.33
#FFFFFF	6.33	1.00	21.00	1.00
#000000	3.32	21.00	1.00	21.00
##FFFFFF	6.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#49669C

Deuteranopia (green-blind)

#385B99

Tritanopia (blue-blind)

#007077

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #21639a;
/* rgb */ color: rgb(33, 99, 154);
/* oklch */ color: oklch(48.6% 0.110 247.8);

Tailwind

colors: {
  custom: {
    50: '#6f8fb8',
    500: '#21639a',
    950: '#000000',
  },
}

SCSS

$custom: #21639a;
$custom-light: #6f8fb8;
$custom-dark: #000000;

JSON

{
  "hex": "#21639a",
  "rgb": {
    "r": 33,
    "g": 99,
    "b": 154
  },
  "hsl": {
    "h": 207.273,
    "s": 64.706,
    "l": 36.667
  },
  "oklch": {
    "l": 0.48625,
    "c": 0.10998,
    "h": 247.8
  },
  "luminance": 0.1158
}

Semantic roles & 50–950 ramp

primary

#21639A

secondary

#C08757

accent

#8C40E8

background

#F7F8FB

surface

#EDF0F6

border

#C8CBD0

text

#080C11

muted

#7B7D80

Preview Lab

Preview with #21639A

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

Preview Lab → · Contrast checker → · Palette generator →