#4289C5#4289C5

#4289C5 is a mid, moderate cyan. Relative luminance 0.231; OKLCH L 61.1% C 0.116 H 246.7°. Best body text is #000000 at 5.62:1 contrast (WCAG AA passes).

Color values

HEX	#4289C5
RGB	rgb(66, 137, 197)
HSL	hsl(207, 53%, 52%)
HSV	hsv(207, 66%, 77%)
CMYK	cmyk(66.5%, 30.5%, 0%, 22.7%)
CIE-LAB	lab(55.15, -3.15, -37.70)
CIE-LCH	lch(55.15, 37.83, 265.23°)
OKLab	oklab(61.13% -0.0459 -0.1065)
OKLCH	oklch(61.13% 0.116 246.7)
XYZ	xyz(21.2667, 23.0786, 56.1463)
Luminance	0.2308 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4289C5 #C57E42

analogous

#42C5C0 #4289C5 #4248C5

triadic

#4289C5 #C54289 #89C542

tetradic

#4289C5 #C042C5 #C57E42 #48C542

square

#4289C5 #C042C5 #C57E42 #48C542

split-complementary

#4289C5 #C54248 #C5C042

monochromatic

#21496C #2F699A #4289C5 #71A6D3 #A0C3E2

Accessibility & contrast

On white

3.74

#4289C5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.62

#4289C5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4289C5

5.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4289C5	#FFFFFF	#000000	##000000
##4289C5	1.00	3.74	5.62	5.62
#FFFFFF	3.74	1.00	21.00	21.00
#000000	5.62	21.00	1.00	1.00
##000000	5.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E8BC8

Deuteranopia (green-blind)

#5C7EC4

Tritanopia (blue-blind)

#00979E

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #4289c5;
/* rgb */ color: rgb(66, 137, 197);
/* oklch */ color: oklch(61.1% 0.116 246.7);

Tailwind

colors: {
  custom: {
    50: '#84abd7',
    500: '#4289c5',
    950: '#000000',
  },
}

SCSS

$custom: #4289c5;
$custom-light: #84abd7;
$custom-dark: #000000;

JSON

{
  "hex": "#4289c5",
  "rgb": {
    "r": 66,
    "g": 137,
    "b": 197
  },
  "hsl": {
    "h": 207.481,
    "s": 53.036,
    "l": 51.569
  },
  "oklch": {
    "l": 0.61134,
    "c": 0.116,
    "h": 246.7
  },
  "luminance": 0.23081
}

Semantic roles & 50–950 ramp

primary

#4289C5

secondary

#CEAF95

accent

#8E4BDC

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0C1014

muted

#7D7F83

Preview Lab

Preview with #4289C5

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

Preview Lab → · Contrast checker → · Palette generator →