#51999B#51999B

#51999B is a light, moderate teal. Relative luminance 0.269; OKLCH L 63.7% C 0.072 H 197.9°. Best body text is #000000 at 6.38:1 contrast (WCAG AA passes).

Color values

HEX	#51999B
RGB	rgb(81, 153, 155)
HSL	hsl(182, 31%, 46%)
HSV	hsv(182, 48%, 61%)
CMYK	cmyk(47.7%, 1.3%, 0%, 39.2%)
CIE-LAB	lab(58.88, -21.93, -8.04)
CIE-LCH	lch(58.88, 23.36, 200.13°)
OKLab	oklab(63.72% -0.0688 -0.0222)
OKLCH	oklch(63.72% 0.072 197.9)
XYZ	xyz(20.6986, 26.8966, 35.1048)
Luminance	0.2690 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51999B #9B5351

analogous

#519B78 #51999B #51749B

triadic

#51999B #9B5199 #999B51

tetradic

#51999B #78519B #9B5351 #749B51

square

#51999B #78519B #9B5351 #749B51

split-complementary

#51999B #9B5174 #9B7851

monochromatic

#274A4B #3C7173 #51999B #73B4B6 #9BCACB

Accessibility & contrast

On white

3.29

#51999B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.38

#51999B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51999B

6.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51999B	#FFFFFF	#000000	##000000
##51999B	1.00	3.29	6.38	6.38
#FFFFFF	3.29	1.00	21.00	21.00
#000000	6.38	21.00	1.00	1.00
##000000	6.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#90939B

Deuteranopia (green-blind)

#848A9C

Tritanopia (blue-blind)

#279D99

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #51999b;
/* rgb */ color: rgb(81, 153, 155);
/* oklch */ color: oklch(63.7% 0.072 197.9);

Tailwind

colors: {
  custom: {
    50: '#87b7b8',
    500: '#51999b',
    950: '#000000',
  },
}

SCSS

$custom: #51999b;
$custom-light: #87b7b8;
$custom-dark: #000000;

JSON

{
  "hex": "#51999b",
  "rgb": {
    "r": 81,
    "g": 153,
    "b": 155
  },
  "hsl": {
    "h": 181.622,
    "s": 31.356,
    "l": 46.275
  },
  "oklch": {
    "l": 0.63723,
    "c": 0.07231,
    "h": 197.9
  },
  "luminance": 0.26898
}

Semantic roles & 50–950 ramp

primary

#51999B

secondary

#B89190

accent

#6360C8

background

#F8FBFB

surface

#F0F6F6

border

#CBD0D0

text

#0C1111

muted

#7D8080

Preview Lab

Preview with #51999B

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

Preview Lab → · Contrast checker → · Palette generator →