#4275D2#4275D2

#4275D2 is a mid, vivid blue. Relative luminance 0.185; OKLCH L 57.4% C 0.153 H 261.3°. Best body text is #000000 at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#4275D2
RGB	rgb(66, 117, 210)
HSL	hsl(219, 62%, 54%)
HSV	hsv(219, 69%, 82%)
CMYK	cmyk(68.6%, 44.3%, 0%, 17.6%)
CIE-LAB	lab(50.13, 13.50, -53.05)
CIE-LCH	lch(50.13, 54.74, 284.28°)
OKLab	oklab(57.45% -0.0232 -0.1517)
OKLCH	oklch(57.45% 0.153 261.3)
XYZ	xyz(20.2368, 18.5319, 63.4708)
Luminance	0.1853 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4275D2 #D29F42

analogous

#42BDD2 #4275D2 #5742D2

triadic

#4275D2 #D24275 #75D242

tetradic

#4275D2 #D242BD #D29F42 #42D257

square

#4275D2 #D242BD #D29F42 #42D257

split-complementary

#4275D2 #D25742 #BDD242

monochromatic

#1E3F7C #2958AD #4275D2 #7399DE #A5BDEA

Accessibility & contrast

On white

4.46

#4275D2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.71

#4275D2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4275D2

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4275D2	#FFFFFF	#000000	##000000
##4275D2	1.00	4.46	4.71	4.71
#FFFFFF	4.46	1.00	21.00	21.00
#000000	4.71	21.00	1.00	1.00
##000000	4.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#477ED6

Deuteranopia (green-blind)

#2D71D0

Tritanopia (blue-blind)

#008B99

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #4275d2;
/* rgb */ color: rgb(66, 117, 210);
/* oklch */ color: oklch(57.4% 0.153 261.3);

Tailwind

colors: {
  custom: {
    50: '#869ce0',
    500: '#4275d2',
    950: '#000000',
  },
}

SCSS

$custom: #4275d2;
$custom-light: #869ce0;
$custom-dark: #000000;

JSON

{
  "hex": "#4275d2",
  "rgb": {
    "r": 66,
    "g": 117,
    "b": 210
  },
  "hsl": {
    "h": 218.75,
    "s": 61.538,
    "l": 54.118
  },
  "oklch": {
    "l": 0.57446,
    "c": 0.15347,
    "h": 261.3
  },
  "luminance": 0.18534
}

Semantic roles & 50–950 ramp

primary

#4275D2

secondary

#D7C199

accent

#AB43E5

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4275D2

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

Preview Lab → · Contrast checker → · Palette generator →