#21517F#21517F

#21517F is a dark, moderate cyan. Relative luminance 0.077; OKLCH L 42.6% C 0.093 H 250.1°. Best body text is #FFFFFF at 8.24:1 contrast (WCAG AA passes).

Color values

HEX	#21517F
RGB	rgb(33, 81, 127)
HSL	hsl(209, 59%, 31%)
HSV	hsv(209, 74%, 50%)
CMYK	cmyk(74%, 36.2%, 0%, 50.2%)
CIE-LAB	lab(33.43, 0.41, -30.65)
CIE-LCH	lch(33.43, 30.65, 270.77°)
OKLab	oklab(42.56% -0.0315 -0.0871)
OKLCH	oklch(42.56% 0.093 250.1)
XYZ	xyz(7.3990, 7.7397, 21.1785)
Luminance	0.0774 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21517F #7F4F21

analogous

#217F7E #21517F #21227F

triadic

#21517F #7F2151 #517F21

tetradic

#21517F #7E217F #7F4F21 #227F21

square

#21517F #7E217F #7F4F21 #227F21

split-complementary

#21517F #7F2122 #7F7E21

monochromatic

#08131E #14324E #21517F #2E70B0 #4A8FD0

Accessibility & contrast

On white

8.24

#21517F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#21517F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21517F

8.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21517F	#FFFFFF	#000000	##FFFFFF
##21517F	1.00	8.24	2.55	8.24
#FFFFFF	8.24	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C5381

Deuteranopia (green-blind)

#2F4B7E

Tritanopia (blue-blind)

#005C62

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #21517f;
/* rgb */ color: rgb(33, 81, 127);
/* oklch */ color: oklch(42.6% 0.093 250.1);

Tailwind

colors: {
  custom: {
    50: '#6981a4',
    500: '#21517f',
    950: '#000000',
  },
}

SCSS

$custom: #21517f;
$custom-light: #6981a4;
$custom-dark: #000000;

JSON

{
  "hex": "#21517f",
  "rgb": {
    "r": 33,
    "g": 81,
    "b": 127
  },
  "hsl": {
    "h": 209.362,
    "s": 58.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.42561,
    "c": 0.09258,
    "h": 250.1
  },
  "luminance": 0.0774
}

Semantic roles & 50–950 ramp

primary

#21517F

secondary

#B27D4A

accent

#9246E2

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #21517F

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

Preview Lab → · Contrast checker → · Palette generator →