#21657D#21657D

#21657D is a mid, moderate cyan. Relative luminance 0.111; OKLCH L 47.5% C 0.077 H 225.6°. Best body text is #FFFFFF at 6.52:1 contrast (WCAG AA passes).

Color values

HEX	#21657D
RGB	rgb(33, 101, 125)
HSL	hsl(196, 58%, 31%)
HSV	hsv(196, 74%, 49%)
CMYK	cmyk(73.6%, 19.2%, 0%, 51%)
CIE-LAB	lab(39.77, -12.63, -19.53)
CIE-LCH	lch(39.77, 23.26, 237.11°)
OKLab	oklab(47.55% -0.0536 -0.0547)
OKLCH	oklch(47.55% 0.077 225.6)
XYZ	xyz(8.9810, 11.1103, 21.0692)
Luminance	0.1111 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21657D #7D3921

analogous

#217D67 #21657D #21377D

triadic

#21657D #7D2165 #657D21

tetradic

#21657D #67217D #7D3921 #377D21

square

#21657D #67217D #7D3921 #377D21

split-complementary

#21657D #7D2137 #7D6721

monochromatic

#07171C #143E4D #21657D #2E8CAD #49ACCF

Accessibility & contrast

On white

6.52

#21657D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#21657D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21657D

6.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21657D	#FFFFFF	#000000	##FFFFFF
##21657D	1.00	6.52	3.22	6.52
#FFFFFF	6.52	1.00	21.00	1.00
#000000	3.22	21.00	1.00	21.00
##FFFFFF	6.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#58637E

Deuteranopia (green-blind)

#4B5A7D

Tritanopia (blue-blind)

#006C6D

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #21657d;
/* rgb */ color: rgb(33, 101, 125);
/* oklch */ color: oklch(47.5% 0.077 225.6);

Tailwind

colors: {
  custom: {
    50: '#6a91a2',
    500: '#21657d',
    950: '#000000',
  },
}

SCSS

$custom: #21657d;
$custom-light: #6a91a2;
$custom-dark: #000000;

JSON

{
  "hex": "#21657d",
  "rgb": {
    "r": 33,
    "g": 101,
    "b": 125
  },
  "hsl": {
    "h": 195.652,
    "s": 58.228,
    "l": 30.98
  },
  "oklch": {
    "l": 0.47549,
    "c": 0.07656,
    "h": 225.6
  },
  "luminance": 0.11111
}

Semantic roles & 50–950 ramp

primary

#21657D

secondary

#B0654A

accent

#6F46E1

background

#F6F8FA

surface

#ECF0F3

border

#C7CBCD

text

#070C0F

muted

#7A7D7F

Preview Lab

Preview with #21657D

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

Preview Lab → · Contrast checker → · Palette generator →