#4258AA#4258AA

#4258AA is a mid, vivid blue. Relative luminance 0.110; OKLCH L 48.6% C 0.133 H 269.6°. Best body text is #FFFFFF at 6.55:1 contrast (WCAG AA passes).

Color values

HEX	#4258AA
RGB	rgb(66, 88, 170)
HSL	hsl(227, 44%, 46%)
HSV	hsv(227, 61%, 67%)
CMYK	cmyk(61.2%, 48.2%, 0%, 33.3%)
CIE-LAB	lab(39.65, 17.69, -46.66)
CIE-LCH	lch(39.65, 49.90, 290.77°)
OKLab	oklab(48.62% -0.0009 -0.1333)
OKLCH	oklch(48.62% 0.133 269.6)
XYZ	xyz(12.9898, 11.0389, 39.4686)
Luminance	0.1104 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4258AA #AA9442

analogous

#428CAA #4258AA #6042AA

triadic

#4258AA #AA4258 #58AA42

tetradic

#4258AA #AA428C #AA9442 #42AA60

square

#4258AA #AA428C #AA9442 #42AA60

split-complementary

#4258AA #AA6042 #8CAA42

monochromatic

#202A52 #31417E #4258AA #667AC3 #92A0D5

Accessibility & contrast

On white

6.55

#4258AA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#4258AA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4258AA

6.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4258AA	#FFFFFF	#000000	##FFFFFF
##4258AA	1.00	6.55	3.21	6.55
#FFFFFF	6.55	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F62AD

Deuteranopia (green-blind)

#1D59A8

Tritanopia (blue-blind)

#006B79

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #4258aa;
/* rgb */ color: rgb(66, 88, 170);
/* oklch */ color: oklch(48.6% 0.133 269.6);

Tailwind

colors: {
  custom: {
    50: '#8086c4',
    500: '#4258aa',
    950: '#000000',
  },
}

SCSS

$custom: #4258aa;
$custom-light: #8086c4;
$custom-dark: #000000;

JSON

{
  "hex": "#4258aa",
  "rgb": {
    "r": 66,
    "g": 88,
    "b": 170
  },
  "hsl": {
    "h": 227.308,
    "s": 44.068,
    "l": 46.275
  },
  "oklch": {
    "l": 0.48619,
    "c": 0.13335,
    "h": 269.6
  },
  "luminance": 0.1104
}

Semantic roles & 50–950 ramp

primary

#4258AA

secondary

#C0B488

accent

#B954D4

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #4258AA

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

Preview Lab → · Contrast checker → · Palette generator →