#21638E#21638E

#21638E is a mid, moderate cyan. Relative luminance 0.112; OKLCH L 47.9% C 0.095 H 241.6°. Best body text is #FFFFFF at 6.48:1 contrast (WCAG AA passes).

Color values

HEX	#21638E
RGB	rgb(33, 99, 142)
HSL	hsl(204, 62%, 34%)
HSV	hsv(204, 77%, 56%)
CMYK	cmyk(76.8%, 30.3%, 0%, 44.3%)
CIE-LAB	lab(39.91, -5.20, -29.59)
CIE-LCH	lch(39.91, 30.05, 260.03°)
OKLab	oklab(47.93% -0.0452 -0.0837)
OKLCH	oklch(47.93% 0.095 241.6)
XYZ	xyz(9.9696, 11.1988, 27.2221)
Luminance	0.1120 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21638E #8E4C21

analogous

#218E83 #21638E #212C8E

triadic

#21638E #8E2163 #638E21

tetradic

#21638E #83218E #8E4C21 #2C8E21

square

#21638E #83218E #8E4C21 #2C8E21

split-complementary

#21638E #8E212C #8E8321

monochromatic

#0A1E2B #15405C #21638E #2D86C0 #52A3D7

Accessibility & contrast

On white

6.48

#21638E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.24

#21638E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21638E

6.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21638E	#FFFFFF	#000000	##FFFFFF
##21638E	1.00	6.48	3.24	6.48
#FFFFFF	6.48	1.00	21.00	1.00
#000000	3.24	21.00	1.00	21.00
##FFFFFF	6.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F6490

Deuteranopia (green-blind)

#40598D

Tritanopia (blue-blind)

#006E72

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #21638e;
/* rgb */ color: rgb(33, 99, 142);
/* oklch */ color: oklch(47.9% 0.095 241.6);

Tailwind

colors: {
  custom: {
    50: '#6d8faf',
    500: '#21638e',
    950: '#000000',
  },
}

SCSS

$custom: #21638e;
$custom-light: #6d8faf;
$custom-dark: #000000;

JSON

{
  "hex": "#21638e",
  "rgb": {
    "r": 33,
    "g": 99,
    "b": 142
  },
  "hsl": {
    "h": 203.67,
    "s": 62.286,
    "l": 34.314
  },
  "oklch": {
    "l": 0.47927,
    "c": 0.09516,
    "h": 241.6
  },
  "luminance": 0.112
}

Semantic roles & 50–950 ramp

primary

#21638E

secondary

#BA7A50

accent

#8342E5

background

#F7F8FA

surface

#EDF0F4

border

#C8CBCE

text

#080C10

muted

#7B7D7F

Preview Lab

Preview with #21638E

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

Preview Lab → · Contrast checker → · Palette generator →