#4275CE#4275CE

#4275CE is a mid, vivid blue. Relative luminance 0.183; OKLCH L 57.2% C 0.148 H 260.7°. Best body text is #000000 at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#4275CE
RGB	rgb(66, 117, 206)
HSL	hsl(218, 59%, 53%)
HSV	hsv(218, 68%, 81%)
CMYK	cmyk(68%, 43.2%, 0%, 19.2%)
CIE-LAB	lab(49.90, 12.07, -51.14)
CIE-LCH	lch(49.90, 52.55, 283.28°)
OKLab	oklab(57.19% -0.0239 -0.1461)
OKLCH	oklch(57.19% 0.148 260.7)
XYZ	xyz(19.7447, 18.3351, 60.8790)
Luminance	0.1834 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4275CE #CE9B42

analogous

#42BBCE #4275CE #5542CE

triadic

#4275CE #CE4275 #75CE42

tetradic

#4275CE #CE42BB #CE9B42 #42CE55

square

#4275CE #CE42BB #CE9B42 #42CE55

split-complementary

#4275CE #CE5542 #BBCE42

monochromatic

#1F3F77 #2B59A7 #4275CE #7398DB #A3BCE7

Accessibility & contrast

On white

4.50

#4275CE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.67

#4275CE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4275CE

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4275CE	#FFFFFF	#000000	##000000
##4275CE	1.00	4.50	4.67	4.67
#FFFFFF	4.50	1.00	21.00	21.00
#000000	4.67	21.00	1.00	1.00
##000000	4.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A7ED1

Deuteranopia (green-blind)

#3271CC

Tritanopia (blue-blind)

#008A97

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #4275ce;
/* rgb */ color: rgb(66, 117, 206);
/* oklch */ color: oklch(57.2% 0.148 260.7);

Tailwind

colors: {
  custom: {
    50: '#859cdd',
    500: '#4275ce',
    950: '#000000',
  },
}

SCSS

$custom: #4275ce;
$custom-light: #859cdd;
$custom-dark: #000000;

JSON

{
  "hex": "#4275ce",
  "rgb": {
    "r": 66,
    "g": 117,
    "b": 206
  },
  "hsl": {
    "h": 218.143,
    "s": 58.824,
    "l": 53.333
  },
  "oklch": {
    "l": 0.57189,
    "c": 0.14806,
    "h": 260.7
  },
  "luminance": 0.18337
}

Semantic roles & 50–950 ramp

primary

#4275CE

secondary

#D4BE98

accent

#A946E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4275CE

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

Preview Lab → · Contrast checker → · Palette generator →