#4275BB#4275BB

#4275BB is a mid, vivid cyan. Relative luminance 0.175; OKLCH L 56.0% C 0.122 H 256.8°. Best body text is #FFFFFF at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#4275BB
RGB	rgb(66, 117, 187)
HSL	hsl(215, 48%, 50%)
HSV	hsv(215, 65%, 73%)
CMYK	cmyk(64.7%, 37.4%, 0%, 26.7%)
CIE-LAB	lab(48.84, 5.36, -41.93)
CIE-LCH	lch(48.84, 42.27, 277.28°)
OKLab	oklab(56.03% -0.028 -0.1191)
OKLCH	oklch(56.03% 0.122 256.8)
XYZ	xyz(17.5745, 17.4670, 49.4494)
Luminance	0.1747 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4275BB #BB8842

analogous

#42B1BB #4275BB #4C42BB

triadic

#4275BB #BB4275 #75BB42

tetradic

#4275BB #BB42B1 #BB8842 #42BB4C

square

#4275BB #BB42B1 #BB8842 #42BB4C

split-complementary

#4275BB #BB4C42 #B1BB42

monochromatic

#223C61 #32598E #4275BB #6E96CC #9CB7DC

Accessibility & contrast

On white

4.67

#4275BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.49

#4275BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4275BB

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4275BB	#FFFFFF	#000000	##FFFFFF
##4275BB	1.00	4.67	4.49	4.67
#FFFFFF	4.67	1.00	21.00	1.00
#000000	4.49	21.00	1.00	21.00
##FFFFFF	4.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#567ABE

Deuteranopia (green-blind)

#456FBA

Tritanopia (blue-blind)

#00858F

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #4275bb;
/* rgb */ color: rgb(66, 117, 187);
/* oklch */ color: oklch(56.0% 0.122 256.8);

Tailwind

colors: {
  custom: {
    50: '#829cd0',
    500: '#4275bb',
    950: '#000000',
  },
}

SCSS

$custom: #4275bb;
$custom-light: #829cd0;
$custom-dark: #000000;

JSON

{
  "hex": "#4275bb",
  "rgb": {
    "r": 66,
    "g": 117,
    "b": 187
  },
  "hsl": {
    "h": 214.711,
    "s": 47.826,
    "l": 49.608
  },
  "oklch": {
    "l": 0.56027,
    "c": 0.12236,
    "h": 256.8
  },
  "luminance": 0.17469
}

Semantic roles & 50–950 ramp

primary

#4275BB

secondary

#C8B191

accent

#9F50D7

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #4275BB

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

Preview Lab → · Contrast checker → · Palette generator →