#21657F#21657F

#21657F is a mid, moderate cyan. Relative luminance 0.112; OKLCH L 47.6% C 0.078 H 227.6°. Best body text is #FFFFFF at 6.50:1 contrast (WCAG AA passes).

Color values

HEX	#21657F
RGB	rgb(33, 101, 127)
HSL	hsl(197, 59%, 31%)
HSV	hsv(197, 74%, 50%)
CMYK	cmyk(74%, 20.5%, 0%, 50.2%)
CIE-LAB	lab(39.85, -11.92, -20.61)
CIE-LCH	lch(39.85, 23.81, 239.96°)
OKLab	oklab(47.65% -0.0528 -0.0578)
OKLCH	oklch(47.65% 0.078 227.6)
XYZ	xyz(9.1101, 11.1620, 21.7489)
Luminance	0.1116 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21657F #7F3B21

analogous

#217F6A #21657F #21367F

triadic

#21657F #7F2165 #657F21

tetradic

#21657F #6A217F #7F3B21 #367F21

square

#21657F #6A217F #7F3B21 #367F21

split-complementary

#21657F #7F2136 #7F6A21

monochromatic

#08181E #143E4E #21657F #2E8CB0 #4AABD0

Accessibility & contrast

On white

6.50

#21657F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#21657F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21657F

6.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21657F	#FFFFFF	#000000	##FFFFFF
##21657F	1.00	6.50	3.23	6.50
#FFFFFF	6.50	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#576380

Deuteranopia (green-blind)

#4A5A7F

Tritanopia (blue-blind)

#006C6E

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #21657f;
/* rgb */ color: rgb(33, 101, 127);
/* oklch */ color: oklch(47.6% 0.078 227.6);

Tailwind

colors: {
  custom: {
    50: '#6a91a4',
    500: '#21657f',
    950: '#000000',
  },
}

SCSS

$custom: #21657f;
$custom-light: #6a91a4;
$custom-dark: #000000;

JSON

{
  "hex": "#21657f",
  "rgb": {
    "r": 33,
    "g": 101,
    "b": 127
  },
  "hsl": {
    "h": 196.596,
    "s": 58.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.47647,
    "c": 0.07826,
    "h": 227.6
  },
  "luminance": 0.11163
}

Semantic roles & 50–950 ramp

primary

#21657F

secondary

#B2674A

accent

#7146E2

background

#F6F8FA

surface

#ECF0F4

border

#C7CBCE

text

#070C0F

muted

#7A7D7F

Preview Lab

Preview with #21657F

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

Preview Lab → · Contrast checker → · Palette generator →