#518CBB#518CBB

#518CBB is a mid, moderate cyan. Relative luminance 0.241; OKLCH L 62.0% C 0.095 H 244.2°. Best body text is #000000 at 5.82:1 contrast (WCAG AA passes).

Color values

HEX	#518CBB
RGB	rgb(81, 140, 187)
HSL	hsl(207, 44%, 53%)
HSV	hsv(207, 57%, 73%)
CMYK	cmyk(56.7%, 25.1%, 0%, 26.7%)
CIE-LAB	lab(56.18, -5.35, -30.37)
CIE-LCH	lch(56.18, 30.84, 260.02°)
OKLab	oklab(61.96% -0.0411 -0.0851)
OKLCH	oklch(61.96% 0.095 244.2)
XYZ	xyz(21.7378, 24.0915, 50.5086)
Luminance	0.2409 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#518CBB #BB8051

analogous

#51BBB5 #518CBB #5157BB

triadic

#518CBB #BB518C #8CBB51

tetradic

#518CBB #B551BB #BB8051 #57BB51

square

#518CBB #B551BB #BB8051 #57BB51

split-complementary

#518CBB #BB5157 #BBB551

monochromatic

#294C69 #3A6D95 #518CBB #7DA9CC #A9C6DD

Accessibility & contrast

On white

3.61

#518CBB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.82

#518CBB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #518CBB

5.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##518CBB	#FFFFFF	#000000	##000000
##518CBB	1.00	3.61	5.82	5.82
#FFFFFF	3.61	1.00	21.00	21.00
#000000	5.82	21.00	1.00	1.00
##000000	5.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#788DBD

Deuteranopia (green-blind)

#6982BA

Tritanopia (blue-blind)

#00979C

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #518cbb;
/* rgb */ color: rgb(81, 140, 187);
/* oklch */ color: oklch(62.0% 0.095 244.2);

Tailwind

colors: {
  custom: {
    50: '#8aadcf',
    500: '#518cbb',
    950: '#000000',
  },
}

SCSS

$custom: #518cbb;
$custom-light: #8aadcf;
$custom-dark: #000000;

JSON

{
  "hex": "#518cbb",
  "rgb": {
    "r": 81,
    "g": 140,
    "b": 187
  },
  "hsl": {
    "h": 206.604,
    "s": 43.802,
    "l": 52.549
  },
  "oklch": {
    "l": 0.61961,
    "c": 0.09455,
    "h": 244.2
  },
  "luminance": 0.24093
}

Semantic roles & 50–950 ramp

primary

#518CBB

secondary

#CBB19D

accent

#8D54D4

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0C1014

muted

#7D7F82

Preview Lab

Preview with #518CBB

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

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