#21647B#21647B

#21647B is a mid, moderate cyan. Relative luminance 0.109; OKLCH L 47.2% C 0.075 H 224.8°. Best body text is #FFFFFF at 6.62:1 contrast (WCAG AA passes).

Color values

HEX	#21647B
RGB	rgb(33, 100, 123)
HSL	hsl(195, 58%, 31%)
HSV	hsv(195, 73%, 48%)
CMYK	cmyk(73.2%, 18.7%, 0%, 51.8%)
CIE-LAB	lab(39.35, -12.76, -18.95)
CIE-LCH	lch(39.35, 22.85, 236.04°)
OKLab	oklab(47.19% -0.0533 -0.053)
OKLCH	oklch(47.19% 0.075 224.8)
XYZ	xyz(8.7581, 10.8667, 20.3710)
Luminance	0.1087 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21647B #7B3821

analogous

#217B65 #21647B #21377B

triadic

#21647B #7B2164 #647B21

tetradic

#21647B #65217B #7B3821 #377B21

square

#21647B #65217B #7B3821 #377B21

split-complementary

#21647B #7B2137 #7B6521

monochromatic

#07161A #143D4B #21647B #2E8BAB #48ACCE

Accessibility & contrast

On white

6.62

#21647B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#21647B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21647B

6.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21647B	#FFFFFF	#000000	##FFFFFF
##21647B	1.00	6.62	3.17	6.62
#FFFFFF	6.62	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#57627C

Deuteranopia (green-blind)

#4B597B

Tritanopia (blue-blind)

#006B6B

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #21647b;
/* rgb */ color: rgb(33, 100, 123);
/* oklch */ color: oklch(47.2% 0.075 224.8);

Tailwind

colors: {
  custom: {
    50: '#6990a1',
    500: '#21647b',
    950: '#000000',
  },
}

SCSS

$custom: #21647b;
$custom-light: #6990a1;
$custom-dark: #000000;

JSON

{
  "hex": "#21647b",
  "rgb": {
    "r": 33,
    "g": 100,
    "b": 123
  },
  "hsl": {
    "h": 195.333,
    "s": 57.692,
    "l": 30.588
  },
  "oklch": {
    "l": 0.47192,
    "c": 0.07519,
    "h": 224.8
  },
  "luminance": 0.10868
}

Semantic roles & 50–950 ramp

primary

#21647B

secondary

#AE634A

accent

#6E47E1

background

#F6F8F9

surface

#ECF0F2

border

#C7CBCC

text

#070C0F

muted

#7A7D7E

Preview Lab

Preview with #21647B

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

Preview Lab → · Contrast checker → · Palette generator →