#51CBE0#51CBE0

#51CBE0 is a light, moderate teal. Relative luminance 0.498; OKLCH L 78.2% C 0.111 H 210.9°. Best body text is #000000 at 10.97:1 contrast (WCAG AA passes).

Color values

HEX	#51CBE0
RGB	rgb(81, 203, 224)
HSL	hsl(189, 70%, 60%)
HSV	hsv(189, 64%, 88%)
CMYK	cmyk(63.8%, 9.4%, 0%, 12.2%)
CIE-LAB	lab(75.97, -27.44, -20.47)
CIE-LCH	lch(75.97, 34.24, 216.72°)
OKLab	oklab(78.22% -0.095 -0.0568)
OKLCH	oklch(78.22% 0.111 210.9)
XYZ	xyz(38.1982, 49.8389, 78.1133)
Luminance	0.4984 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51CBE0 #E06651

analogous

#51E0AD #51CBE0 #5184E0

triadic

#51CBE0 #E051CB #CBE051

tetradic

#51CBE0 #AD51E0 #E06651 #84E051

square

#51CBE0 #AD51E0 #E06651 #84E051

split-complementary

#51CBE0 #E05184 #E0AD51

monochromatic

#1C889B #25B6CF #51CBE0 #85DBE9 #B9EAF3

Accessibility & contrast

On white

1.91

#51CBE0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.97

#51CBE0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51CBE0

10.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51CBE0	#FFFFFF	#000000	##000000
##51CBE0	1.00	1.91	10.97	10.97
#FFFFFF	1.91	1.00	21.00	21.00
#000000	10.97	21.00	1.00	1.00
##000000	10.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BAC4E1

Deuteranopia (green-blind)

#A5B5E0

Tritanopia (blue-blind)

#00D4D1

Achromatopsia (no color)

#BBBBBB

Design tokens & code

CSS

--color: #51cbe0;
/* rgb */ color: rgb(81, 203, 224);
/* oklch */ color: oklch(78.2% 0.111 210.9);

Tailwind

colors: {
  custom: {
    50: '#91dbe9',
    500: '#51cbe0',
    950: '#000000',
  },
}

SCSS

$custom: #51cbe0;
$custom-light: #91dbe9;
$custom-dark: #000000;

JSON

{
  "hex": "#51cbe0",
  "rgb": {
    "r": 81,
    "g": 203,
    "b": 224
  },
  "hsl": {
    "h": 188.811,
    "s": 69.756,
    "l": 59.804
  },
  "oklch": {
    "l": 0.78215,
    "c": 0.11074,
    "h": 210.9
  },
  "luminance": 0.49843
}

Semantic roles & 50–950 ramp

primary

#51CBE0

secondary

#E2B3AB

accent

#553BED

background

#F9FDFE

surface

#F2FBFC

border

#CCD4D5

text

#0E1516

muted

#7E8384

Preview Lab

Preview with #51CBE0

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

Preview Lab → · Contrast checker → · Palette generator →