#51A2E3#51A2E3

#51A2E3 is a light, vivid cyan. Relative luminance 0.331; OKLCH L 68.9% C 0.125 H 245.3°. Best body text is #000000 at 7.63:1 contrast (WCAG AA passes).

Color values

HEX	#51A2E3
RGB	rgb(81, 162, 227)
HSL	hsl(207, 72%, 60%)
HSV	hsv(207, 64%, 89%)
CMYK	cmyk(64.3%, 28.6%, 0%, 11%)
CIE-LAB	lab(64.27, -4.90, -40.15)
CIE-LCH	lch(64.27, 40.45, 263.05°)
OKLab	oklab(68.92% -0.0522 -0.1132)
OKLCH	oklch(68.92% 0.125 245.3)
XYZ	xyz(30.1736, 33.1330, 77.4633)
Luminance	0.3314 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A2E3 #E39251

analogous

#51E3DB #51A2E3 #5159E3

triadic

#51A2E3 #E351A2 #A2E351

tetradic

#51A2E3 #DB51E3 #E39251 #59E351

square

#51A2E3 #DB51E3 #E39251 #59E351

split-complementary

#51A2E3 #E35159 #E3DB51

monochromatic

#1A64A0 #2285D5 #51A2E3 #86BEEB #BADAF4

Accessibility & contrast

On white

2.75

#51A2E3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.63

#51A2E3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51A2E3

7.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A2E3	#FFFFFF	#000000	##000000
##51A2E3	1.00	2.75	7.63	7.63
#FFFFFF	2.75	1.00	21.00	21.00
#000000	7.63	21.00	1.00	1.00
##000000	7.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#85A4E6

Deuteranopia (green-blind)

#7195E2

Tritanopia (blue-blind)

#00B2B9

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #51a2e3;
/* rgb */ color: rgb(81, 162, 227);
/* oklch */ color: oklch(68.9% 0.125 245.3);

Tailwind

colors: {
  custom: {
    50: '#8fbdec',
    500: '#51a2e3',
    950: '#000000',
  },
}

SCSS

$custom: #51a2e3;
$custom-light: #8fbdec;
$custom-dark: #000000;

JSON

{
  "hex": "#51a2e3",
  "rgb": {
    "r": 81,
    "g": 162,
    "b": 227
  },
  "hsl": {
    "h": 206.712,
    "s": 72.277,
    "l": 60.392
  },
  "oklch": {
    "l": 0.68921,
    "c": 0.12468,
    "h": 245.3
  },
  "luminance": 0.33136
}

Semantic roles & 50–950 ramp

primary

#51A2E3

secondary

#E4C5AC

accent

#6811D4

background

#F9FBFE

surface

#F2F6FD

border

#CCD0D5

text

#0E1216

muted

#7E8184

Preview Lab

Preview with #51A2E3

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

Preview Lab → · Contrast checker → · Palette generator →