#51A7CA#51A7CA

#51A7CA is a light, moderate cyan. Relative luminance 0.337; OKLCH L 68.9% C 0.097 H 227.4°. Best body text is #000000 at 7.73:1 contrast (WCAG AA passes).

Color values

HEX	#51A7CA
RGB	rgb(81, 167, 202)
HSL	hsl(197, 53%, 55%)
HSV	hsv(197, 60%, 79%)
CMYK	cmyk(59.9%, 17.3%, 0%, 20.8%)
CIE-LAB	lab(64.68, -15.60, -25.67)
CIE-LCH	lch(64.68, 30.04, 238.72°)
OKLab	oklab(68.91% -0.0658 -0.0716)
OKLCH	oklch(68.91% 0.097 227.4)
XYZ	xyz(27.8686, 33.6483, 60.8918)
Luminance	0.3365 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A7CA #CA7451

analogous

#51CAB0 #51A7CA #516BCA

triadic

#51A7CA #CA51A7 #A7CA51

tetradic

#51A7CA #B051CA #CA7451 #6BCA51

square

#51A7CA #B051CA #CA7451 #6BCA51

split-complementary

#51A7CA #CA516B #CAB051

monochromatic

#25627B #3488AA #51A7CA #80BFD8 #AFD6E7

Accessibility & contrast

On white

2.72

#51A7CA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.73

#51A7CA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51A7CA

7.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A7CA	#FFFFFF	#000000	##000000
##51A7CA	1.00	2.72	7.73	7.73
#FFFFFF	2.72	1.00	21.00	21.00
#000000	7.73	21.00	1.00	1.00
##000000	7.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#94A4CC

Deuteranopia (green-blind)

#8397CA

Tritanopia (blue-blind)

#00B1B2

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #51a7ca;
/* rgb */ color: rgb(81, 167, 202);
/* oklch */ color: oklch(68.9% 0.097 227.4);

Tailwind

colors: {
  custom: {
    50: '#8dc1da',
    500: '#51a7ca',
    950: '#000000',
  },
}

SCSS

$custom: #51a7ca;
$custom-light: #8dc1da;
$custom-dark: #000000;

JSON

{
  "hex": "#51a7ca",
  "rgb": {
    "r": 81,
    "g": 167,
    "b": 202
  },
  "hsl": {
    "h": 197.355,
    "s": 53.304,
    "l": 55.49
  },
  "oklch": {
    "l": 0.6891,
    "c": 0.09723,
    "h": 227.4
  },
  "luminance": 0.33651
}

Semantic roles & 50–950 ramp

primary

#51A7CA

secondary

#D5B1A2

accent

#754BDD

background

#F9FBFD

surface

#F1F7FA

border

#CBD0D3

text

#0D1214

muted

#7E8183

Preview Lab

Preview with #51A7CA

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

Preview Lab → · Contrast checker → · Palette generator →