#4258D0#4258D0

#4258D0 is a mid, vivid blue. Relative luminance 0.127; OKLCH L 51.5% C 0.186 H 270.6°. Best body text is #FFFFFF at 5.93:1 contrast (WCAG AA passes).

Color values

HEX	#4258D0
RGB	rgb(66, 88, 208)
HSL	hsl(231, 60%, 54%)
HSV	hsv(231, 68%, 82%)
CMYK	cmyk(68.3%, 57.7%, 0%, 18.4%)
CIE-LAB	lab(42.29, 31.10, -64.56)
CIE-LCH	lch(42.29, 71.66, 295.72°)
OKLab	oklab(51.45% 0.0018 -0.186)
OKLCH	oklch(51.45% 0.186 270.6)
XYZ	xyz(17.1178, 12.6901, 61.2096)
Luminance	0.1269 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4258D0 #D0BA42

analogous

#429FD0 #4258D0 #7342D0

triadic

#4258D0 #D04258 #58D042

tetradic

#4258D0 #D0429F #D0BA42 #42D073

square

#4258D0 #D0429F #D0BA42 #42D073

split-complementary

#4258D0 #D07342 #9FD042

monochromatic

#1E2C79 #2A3EAA #4258D0 #7383DC #A4AFE8

Accessibility & contrast

On white

5.93

#4258D0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.54

#4258D0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4258D0

5.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4258D0	#FFFFFF	#000000	##FFFFFF
##4258D0	1.00	5.93	3.54	5.93
#FFFFFF	5.93	1.00	21.00	1.00
#000000	3.54	21.00	1.00	21.00
##FFFFFF	5.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006AD4

Deuteranopia (green-blind)

#005ECE

Tritanopia (blue-blind)

#00768B

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #4258d0;
/* rgb */ color: rgb(66, 88, 208);
/* oklch */ color: oklch(51.5% 0.186 270.6);

Tailwind

colors: {
  custom: {
    50: '#8786df',
    500: '#4258d0',
    950: '#000000',
  },
}

SCSS

$custom: #4258d0;
$custom-light: #8786df;
$custom-dark: #000000;

JSON

{
  "hex": "#4258d0",
  "rgb": {
    "r": 66,
    "g": 88,
    "b": 208
  },
  "hsl": {
    "h": 230.704,
    "s": 60.169,
    "l": 53.725
  },
  "oklch": {
    "l": 0.51453,
    "c": 0.18601,
    "h": 270.6
  },
  "luminance": 0.12692
}

Semantic roles & 50–950 ramp

primary

#4258D0

secondary

#D5CC99

accent

#CB44E3

background

#F9F8FD

surface

#F1EFFB

border

#CBCAD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #4258D0

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

Preview Lab → · Contrast checker → · Palette generator →