#51A2B3#51A2B3

#51A2B3 is a light, moderate cyan. Relative luminance 0.308; OKLCH L 66.8% C 0.083 H 213.2°. Best body text is #000000 at 7.17:1 contrast (WCAG AA passes).

Color values

HEX	#51A2B3
RGB	rgb(81, 162, 179)
HSL	hsl(190, 39%, 51%)
HSV	hsv(190, 55%, 70%)
CMYK	cmyk(54.7%, 9.5%, 0%, 29.8%)
CIE-LAB	lab(62.37, -19.84, -16.35)
CIE-LCH	lch(62.37, 25.71, 219.49°)
OKLab	oklab(66.79% -0.0692 -0.0452)
OKLCH	oklch(66.79% 0.083 213.2)
XYZ	xyz(24.4471, 30.8424, 47.3039)
Luminance	0.3085 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A2B3 #B36251

analogous

#51B393 #51A2B3 #5171B3

triadic

#51A2B3 #B351A2 #A2B351

tetradic

#51A2B3 #9351B3 #B36251 #71B351

square

#51A2B3 #9351B3 #B36251 #71B351

split-complementary

#51A2B3 #B35171 #B39351

monochromatic

#2A5660 #3C7D8A #51A2B3 #7CB9C6 #A6D0D8

Accessibility & contrast

On white

2.93

#51A2B3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.17

#51A2B3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51A2B3

7.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A2B3	#FFFFFF	#000000	##000000
##51A2B3	1.00	2.93	7.17	7.17
#FFFFFF	2.93	1.00	21.00	21.00
#000000	7.17	21.00	1.00	1.00
##000000	7.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#959DB4

Deuteranopia (green-blind)

#8692B3

Tritanopia (blue-blind)

#00A9A7

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #51a2b3;
/* rgb */ color: rgb(81, 162, 179);
/* oklch */ color: oklch(66.8% 0.083 213.2);

Tailwind

colors: {
  custom: {
    50: '#8abdc9',
    500: '#51a2b3',
    950: '#000000',
  },
}

SCSS

$custom: #51a2b3;
$custom-light: #8abdc9;
$custom-dark: #000000;

JSON

{
  "hex": "#51a2b3",
  "rgb": {
    "r": 81,
    "g": 162,
    "b": 179
  },
  "hsl": {
    "h": 190.408,
    "s": 39.2,
    "l": 50.98
  },
  "oklch": {
    "l": 0.6679,
    "c": 0.08267,
    "h": 213.2
  },
  "luminance": 0.30845
}

Semantic roles & 50–950 ramp

primary

#51A2B3

secondary

#C6A29A

accent

#6D59CF

background

#F8FBFC

surface

#F0F6F8

border

#CBD0D1

text

#0C1213

muted

#7D8182

Preview Lab

Preview with #51A2B3

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

Preview Lab → · Contrast checker → · Palette generator →