#4258C7#4258C7

#4258C7 is a mid, vivid blue. Relative luminance 0.123; OKLCH L 50.7% C 0.174 H 270.5°. Best body text is #FFFFFF at 6.08:1 contrast (WCAG AA passes).

Color values

HEX	#4258C7
RGB	rgb(66, 88, 199)
HSL	hsl(230, 54%, 52%)
HSV	hsv(230, 67%, 78%)
CMYK	cmyk(66.8%, 55.8%, 0%, 22%)
CIE-LAB	lab(41.63, 27.93, -60.45)
CIE-LCH	lch(41.63, 66.59, 294.80°)
OKLab	oklab(50.75% 0.0016 -0.1739)
OKLCH	oklch(50.75% 0.174 270.5)
XYZ	xyz(16.0418, 12.2597, 55.5427)
Luminance	0.1226 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4258C7 #C7B142

analogous

#429BC7 #4258C7 #6F42C7

triadic

#4258C7 #C74258 #58C742

tetradic

#4258C7 #C7429B #C7B142 #42C76F

square

#4258C7 #C7429B #C7B142 #42C76F

split-complementary

#4258C7 #C76F42 #9BC742

monochromatic

#212D6E #2F419D #4258C7 #7182D5 #A0ABE3

Accessibility & contrast

On white

6.08

#4258C7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.45

#4258C7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4258C7

6.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4258C7	#FFFFFF	#000000	##FFFFFF
##4258C7	1.00	6.08	3.45	6.08
#FFFFFF	6.08	1.00	21.00	1.00
#000000	3.45	21.00	1.00	21.00
##FFFFFF	6.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068CB

Deuteranopia (green-blind)

#005CC5

Tritanopia (blue-blind)

#007387

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #4258c7;
/* rgb */ color: rgb(66, 88, 199);
/* oklch */ color: oklch(50.7% 0.174 270.5);

Tailwind

colors: {
  custom: {
    50: '#8586d9',
    500: '#4258c7',
    950: '#000000',
  },
}

SCSS

$custom: #4258c7;
$custom-light: #8586d9;
$custom-dark: #000000;

JSON

{
  "hex": "#4258c7",
  "rgb": {
    "r": 66,
    "g": 88,
    "b": 199
  },
  "hsl": {
    "h": 230.075,
    "s": 54.286,
    "l": 51.961
  },
  "oklch": {
    "l": 0.50745,
    "c": 0.17393,
    "h": 270.5
  },
  "luminance": 0.12261
}

Semantic roles & 50–950 ramp

primary

#4258C7

secondary

#D0C695

accent

#C54ADE

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #4258C7

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

Preview Lab → · Contrast checker → · Palette generator →