#21618B#21618B

#21618B is a mid, moderate cyan. Relative luminance 0.107; OKLCH L 47.3% C 0.093 H 241.7°. Best body text is #FFFFFF at 6.67:1 contrast (WCAG AA passes).

Color values

HEX	#21618B
RGB	rgb(33, 97, 139)
HSL	hsl(204, 62%, 34%)
HSV	hsv(204, 76%, 55%)
CMYK	cmyk(76.3%, 30.2%, 0%, 45.5%)
CIE-LAB	lab(39.13, -5.11, -29.01)
CIE-LCH	lch(39.13, 29.45, 260.02°)
OKLab	oklab(47.26% -0.0442 -0.0821)
OKLCH	oklch(47.26% 0.093 241.7)
XYZ	xyz(9.5603, 10.7357, 25.9894)
Luminance	0.1074 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21618B #8B4B21

analogous

#218B80 #21618B #212C8B

triadic

#21618B #8B2161 #618B21

tetradic

#21618B #80218B #8B4B21 #2C8B21

square

#21618B #80218B #8B4B21 #2C8B21

split-complementary

#21618B #8B212C #8B8021

monochromatic

#0A1C28 #153E5A #21618B #2D84BC #51A1D6

Accessibility & contrast

On white

6.67

#21618B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#21618B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21618B

6.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21618B	#FFFFFF	#000000	##FFFFFF
##21618B	1.00	6.67	3.15	6.67
#FFFFFF	6.67	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E628D

Deuteranopia (green-blind)

#3F588A

Tritanopia (blue-blind)

#006B70

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #21618b;
/* rgb */ color: rgb(33, 97, 139);
/* oklch */ color: oklch(47.3% 0.093 241.7);

Tailwind

colors: {
  custom: {
    50: '#6c8dad',
    500: '#21618b',
    950: '#000000',
  },
}

SCSS

$custom: #21618b;
$custom-light: #6c8dad;
$custom-dark: #000000;

JSON

{
  "hex": "#21618b",
  "rgb": {
    "r": 33,
    "g": 97,
    "b": 139
  },
  "hsl": {
    "h": 203.774,
    "s": 61.628,
    "l": 33.725
  },
  "oklch": {
    "l": 0.47258,
    "c": 0.09319,
    "h": 241.7
  },
  "luminance": 0.10737
}

Semantic roles & 50–950 ramp

primary

#21618B

secondary

#B9794F

accent

#8343E5

background

#F6F8FA

surface

#ECF0F4

border

#C7CBCE

text

#080C10

muted

#7A7D7F

Preview Lab

Preview with #21618B

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

Preview Lab → · Contrast checker → · Palette generator →