#21668B#21668B

#21668B is a mid, moderate cyan. Relative luminance 0.117; OKLCH L 48.5% C 0.090 H 236.6°. Best body text is #FFFFFF at 6.29:1 contrast (WCAG AA passes).

Color values

HEX	#21668B
RGB	rgb(33, 102, 139)
HSL	hsl(201, 62%, 34%)
HSV	hsv(201, 76%, 55%)
CMYK	cmyk(76.3%, 26.6%, 0%, 45.5%)
CIE-LAB	lab(40.72, -8.14, -26.53)
CIE-LCH	lch(40.72, 27.75, 252.94°)
OKLab	oklab(48.52% -0.0493 -0.0748)
OKLCH	oklch(48.52% 0.09 236.6)
XYZ	xyz(10.0369, 11.6890, 26.1483)
Luminance	0.1169 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21668B #8B4621

analogous

#218B7B #21668B #21318B

triadic

#21668B #8B2166 #668B21

tetradic

#21668B #7B218B #8B4621 #318B21

square

#21668B #7B218B #8B4621 #318B21

split-complementary

#21668B #8B2131 #8B7B21

monochromatic

#0A1D28 #15425A #21668B #2D8ABC #51A7D6

Accessibility & contrast

On white

6.29

#21668B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#21668B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21668B

6.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21668B	#FFFFFF	#000000	##FFFFFF
##21668B	1.00	6.29	3.34	6.29
#FFFFFF	6.29	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#54668D

Deuteranopia (green-blind)

#465C8A

Tritanopia (blue-blind)

#007073

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #21668b;
/* rgb */ color: rgb(33, 102, 139);
/* oklch */ color: oklch(48.5% 0.090 236.6);

Tailwind

colors: {
  custom: {
    50: '#6c91ad',
    500: '#21668b',
    950: '#000000',
  },
}

SCSS

$custom: #21668b;
$custom-light: #6c91ad;
$custom-dark: #000000;

JSON

{
  "hex": "#21668b",
  "rgb": {
    "r": 33,
    "g": 102,
    "b": 139
  },
  "hsl": {
    "h": 200.943,
    "s": 61.628,
    "l": 33.725
  },
  "oklch": {
    "l": 0.48517,
    "c": 0.08959,
    "h": 236.6
  },
  "luminance": 0.1169
}

Semantic roles & 50–950 ramp

primary

#21668B

secondary

#B9744F

accent

#7B43E5

background

#F6F8FA

surface

#ECF0F4

border

#C7CBCE

text

#080C10

muted

#7A7D7F

Preview Lab

Preview with #21668B

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

Preview Lab → · Contrast checker → · Palette generator →