#21657E#21657E

#21657E is a mid, moderate cyan. Relative luminance 0.111; OKLCH L 47.6% C 0.077 H 226.6°. Best body text is #FFFFFF at 6.51:1 contrast (WCAG AA passes).

Color values

HEX	#21657E
RGB	rgb(33, 101, 126)
HSL	hsl(196, 58%, 31%)
HSV	hsv(196, 74%, 49%)
CMYK	cmyk(73.8%, 19.8%, 0%, 50.6%)
CIE-LAB	lab(39.81, -12.28, -20.07)
CIE-LCH	lch(39.81, 23.53, 238.55°)
OKLab	oklab(47.6% -0.0532 -0.0562)
OKLCH	oklch(47.6% 0.077 226.6)
XYZ	xyz(9.0452, 11.1360, 21.4074)
Luminance	0.1114 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21657E #7E3A21

analogous

#217E68 #21657E #21367E

triadic

#21657E #7E2165 #657E21

tetradic

#21657E #68217E #7E3A21 #367E21

square

#21657E #68217E #7E3A21 #367E21

split-complementary

#21657E #7E2136 #7E6821

monochromatic

#08171D #143E4E #21657E #2E8CAE #4AACD0

Accessibility & contrast

On white

6.51

#21657E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#21657E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21657E

6.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21657E	#FFFFFF	#000000	##FFFFFF
##21657E	1.00	6.51	3.23	6.51
#FFFFFF	6.51	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#58637F

Deuteranopia (green-blind)

#4B5A7E

Tritanopia (blue-blind)

#006C6D

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #21657e;
/* rgb */ color: rgb(33, 101, 126);
/* oklch */ color: oklch(47.6% 0.077 226.6);

Tailwind

colors: {
  custom: {
    50: '#6a91a3',
    500: '#21657e',
    950: '#000000',
  },
}

SCSS

$custom: #21657e;
$custom-light: #6a91a3;
$custom-dark: #000000;

JSON

{
  "hex": "#21657e",
  "rgb": {
    "r": 33,
    "g": 101,
    "b": 126
  },
  "hsl": {
    "h": 196.129,
    "s": 58.491,
    "l": 31.176
  },
  "oklch": {
    "l": 0.47598,
    "c": 0.0774,
    "h": 226.6
  },
  "luminance": 0.11137
}

Semantic roles & 50–950 ramp

primary

#21657E

secondary

#B1664A

accent

#7046E2

background

#F6F8FA

surface

#ECF0F3

border

#C7CBCD

text

#070C0F

muted

#7A7D7F

Preview Lab

Preview with #21657E

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

Preview Lab → · Contrast checker → · Palette generator →