#4281CF#4281CF

#4281CF is a mid, vivid cyan. Relative luminance 0.214; OKLCH L 59.9% C 0.136 H 255.0°. Best body text is #000000 at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#4281CF
RGB	rgb(66, 129, 207)
HSL	hsl(213, 59%, 54%)
HSV	hsv(213, 68%, 81%)
CMYK	cmyk(68.1%, 37.7%, 0%, 18.8%)
CIE-LAB	lab(53.34, 5.08, -46.23)
CIE-LCH	lch(53.34, 46.51, 276.27°)
OKLab	oklab(59.88% -0.0352 -0.1315)
OKLCH	oklch(59.88% 0.136 255)
XYZ	xyz(21.3554, 21.3615, 62.0171)
Luminance	0.2136 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4281CF #CF9042

analogous

#42C8CF #4281CF #4942CF

triadic

#4281CF #CF4281 #81CF42

tetradic

#4281CF #CF42C8 #CF9042 #42CF49

square

#4281CF #CF42C8 #CF9042 #42CF49

split-complementary

#4281CF #CF4942 #C8CF42

monochromatic

#1F4778 #2B63A9 #4281CF #73A2DB #A4C2E8

Accessibility & contrast

On white

3.98

#4281CF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.27

#4281CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4281CF

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4281CF	#FFFFFF	#000000	##000000
##4281CF	1.00	3.98	5.27	5.27
#FFFFFF	3.98	1.00	21.00	21.00
#000000	5.27	21.00	1.00	1.00
##000000	5.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E87D2

Deuteranopia (green-blind)

#4979CD

Tritanopia (blue-blind)

#00939E

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #4281cf;
/* rgb */ color: rgb(66, 129, 207);
/* oklch */ color: oklch(59.9% 0.136 255.0);

Tailwind

colors: {
  custom: {
    50: '#85a5de',
    500: '#4281cf',
    950: '#000000',
  },
}

SCSS

$custom: #4281cf;
$custom-light: #85a5de;
$custom-dark: #000000;

JSON

{
  "hex": "#4281cf",
  "rgb": {
    "r": 66,
    "g": 129,
    "b": 207
  },
  "hsl": {
    "h": 213.191,
    "s": 59.494,
    "l": 53.529
  },
  "oklch": {
    "l": 0.59879,
    "c": 0.13615,
    "h": 255
  },
  "luminance": 0.21364
}

Semantic roles & 50–950 ramp

primary

#4281CF

secondary

#D5BA98

accent

#9C45E3

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #4281CF

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

Preview Lab → · Contrast checker → · Palette generator →