#51A7D2#51A7D2

#51A7D2 is a light, moderate cyan. Relative luminance 0.340; OKLCH L 69.3% C 0.104 H 232.8°. Best body text is #000000 at 7.81:1 contrast (WCAG AA passes).

Color values

HEX	#51A7D2
RGB	rgb(81, 167, 210)
HSL	hsl(200, 59%, 57%)
HSV	hsv(200, 61%, 82%)
CMYK	cmyk(61.4%, 20.5%, 0%, 17.6%)
CIE-LAB	lab(64.99, -13.11, -29.63)
CIE-LCH	lch(64.99, 32.40, 246.12°)
OKLab	oklab(69.26% -0.0629 -0.0829)
OKLCH	oklch(69.26% 0.104 232.8)
XYZ	xyz(28.8404, 34.0370, 66.0102)
Luminance	0.3404 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A7D2 #D27C51

analogous

#51D2BD #51A7D2 #5167D2

triadic

#51A7D2 #D251A7 #A7D251

tetradic

#51A7D2 #BD51D2 #D27C51 #67D251

square

#51A7D2 #BD51D2 #D27C51 #67D251

split-complementary

#51A7D2 #D25167 #D2BD51

monochromatic

#236586 #2F89B7 #51A7D2 #82C0DF #B2D8EB

Accessibility & contrast

On white

2.69

#51A7D2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.81

#51A7D2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51A7D2

7.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A7D2	#FFFFFF	#000000	##000000
##51A7D2	1.00	2.69	7.81	7.81
#FFFFFF	2.69	1.00	21.00	21.00
#000000	7.81	21.00	1.00	1.00
##000000	7.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#92A5D4

Deuteranopia (green-blind)

#8098D1

Tritanopia (blue-blind)

#00B3B5

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #51a7d2;
/* rgb */ color: rgb(81, 167, 210);
/* oklch */ color: oklch(69.3% 0.104 232.8);

Tailwind

colors: {
  custom: {
    50: '#8dc1e0',
    500: '#51a7d2',
    950: '#000000',
  },
}

SCSS

$custom: #51a7d2;
$custom-light: #8dc1e0;
$custom-dark: #000000;

JSON

{
  "hex": "#51a7d2",
  "rgb": {
    "r": 81,
    "g": 167,
    "b": 210
  },
  "hsl": {
    "h": 200,
    "s": 58.904,
    "l": 57.059
  },
  "oklch": {
    "l": 0.69259,
    "c": 0.10406,
    "h": 232.8
  },
  "luminance": 0.3404
}

Semantic roles & 50–950 ramp

primary

#51A7D2

secondary

#DAB7A5

accent

#7A46E2

background

#F9FBFD

surface

#F1F7FB

border

#CBD0D4

text

#0D1215

muted

#7E8183

Preview Lab

Preview with #51A7D2

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

Preview Lab → · Contrast checker → · Palette generator →