#21A5B3#21A5B3

#21A5B3 is a light, moderate teal. Relative luminance 0.305; OKLCH L 66.2% C 0.107 H 206.1°. Best body text is #000000 at 7.10:1 contrast (WCAG AA passes).

Color values

HEX	#21A5B3
RGB	rgb(33, 165, 179)
HSL	hsl(186, 69%, 42%)
HSV	hsv(186, 82%, 70%)
CMYK	cmyk(81.6%, 7.8%, 0%, 29.8%)
CIE-LAB	lab(62.07, -28.52, -16.92)
CIE-LCH	lch(62.07, 33.16, 210.68°)
OKLab	oklab(66.2% -0.096 -0.0471)
OKLCH	oklch(66.2% 0.107 206.1)
XYZ	xyz(22.2154, 30.4855, 47.3525)
Luminance	0.3049 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21A5B3 #B32F21

analogous

#21B378 #21A5B3 #215CB3

triadic

#21A5B3 #B321A5 #A5B321

tetradic

#21A5B3 #7821B3 #B32F21 #5CB321

square

#21A5B3 #7821B3 #B32F21 #5CB321

split-complementary

#21A5B3 #B3215C #B37821

monochromatic

#0E464C #17757F #21A5B3 #37CBDA #6BD8E4

Accessibility & contrast

On white

2.96

#21A5B3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.10

#21A5B3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #21A5B3

7.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21A5B3	#FFFFFF	#000000	##000000
##21A5B3	1.00	2.96	7.10	7.10
#FFFFFF	2.96	1.00	21.00	21.00
#000000	7.10	21.00	1.00	1.00
##000000	7.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#969EB4

Deuteranopia (green-blind)

#8390B3

Tritanopia (blue-blind)

#00ADA9

Achromatopsia (no color)

#969696

Design tokens & code

CSS

--color: #21a5b3;
/* rgb */ color: rgb(33, 165, 179);
/* oklch */ color: oklch(66.2% 0.107 206.1);

Tailwind

colors: {
  custom: {
    50: '#78c0c9',
    500: '#21a5b3',
    950: '#000000',
  },
}

SCSS

$custom: #21a5b3;
$custom-light: #78c0c9;
$custom-dark: #000000;

JSON

{
  "hex": "#21a5b3",
  "rgb": {
    "r": 33,
    "g": 165,
    "b": 179
  },
  "hsl": {
    "h": 185.753,
    "s": 68.868,
    "l": 41.569
  },
  "oklch": {
    "l": 0.66201,
    "c": 0.10691,
    "h": 206.1
  },
  "luminance": 0.30488
}

Semantic roles & 50–950 ramp

primary

#21A5B3

secondary

#CA7066

accent

#4D3CEC

background

#F8FBFC

surface

#EFF7F8

border

#CAD0D1

text

#0B1213

muted

#7C8182

Preview Lab

Preview with #21A5B3

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

Preview Lab → · Contrast checker → · Palette generator →