#4289CA#4289CA

#4289CA is a mid, vivid cyan. Relative luminance 0.233; OKLCH L 61.4% C 0.122 H 248.7°. Best body text is #000000 at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#4289CA
RGB	rgb(66, 137, 202)
HSL	hsl(209, 56%, 53%)
HSV	hsv(209, 67%, 79%)
CMYK	cmyk(67.3%, 32.2%, 0%, 20.8%)
CIE-LAB	lab(55.39, -1.43, -40.16)
CIE-LCH	lch(55.39, 40.19, 267.96°)
OKLab	oklab(61.4% -0.0444 -0.1137)
OKLCH	oklch(61.4% 0.122 248.7)
XYZ	xyz(21.8491, 23.3116, 59.2138)
Luminance	0.2331 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4289CA #CA8342

analogous

#42CAC7 #4289CA #4245CA

triadic

#4289CA #CA4289 #89CA42

tetradic

#4289CA #C742CA #CA8342 #45CA42

square

#4289CA #C742CA #CA8342 #45CA42

split-complementary

#4289CA #CA4245 #CAC742

monochromatic

#204B72 #2D6AA2 #4289CA #72A7D7 #A2C5E5

Accessibility & contrast

On white

3.71

#4289CA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.66

#4289CA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4289CA

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4289CA	#FFFFFF	#000000	##000000
##4289CA	1.00	3.71	5.66	5.66
#FFFFFF	3.71	1.00	21.00	21.00
#000000	5.66	21.00	1.00	1.00
##000000	5.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C8CCD

Deuteranopia (green-blind)

#597FC9

Tritanopia (blue-blind)

#0098A0

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #4289ca;
/* rgb */ color: rgb(66, 137, 202);
/* oklch */ color: oklch(61.4% 0.122 248.7);

Tailwind

colors: {
  custom: {
    50: '#85abda',
    500: '#4289ca',
    950: '#000000',
  },
}

SCSS

$custom: #4289ca;
$custom-light: #85abda;
$custom-dark: #000000;

JSON

{
  "hex": "#4289ca",
  "rgb": {
    "r": 66,
    "g": 137,
    "b": 202
  },
  "hsl": {
    "h": 208.676,
    "s": 56.198,
    "l": 52.549
  },
  "oklch": {
    "l": 0.614,
    "c": 0.12206,
    "h": 248.7
  },
  "luminance": 0.23314
}

Semantic roles & 50–950 ramp

primary

#4289CA

secondary

#D1B396

accent

#9148DF

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #4289CA

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

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