#4258B7#4258B7

#4258B7 is a mid, vivid blue. Relative luminance 0.116; OKLCH L 49.5% C 0.152 H 270.2°. Best body text is #FFFFFF at 6.34:1 contrast (WCAG AA passes).

Color values

HEX	#4258B7
RGB	rgb(66, 88, 183)
HSL	hsl(229, 47%, 49%)
HSV	hsv(229, 64%, 72%)
CMYK	cmyk(63.9%, 51.9%, 0%, 28.2%)
CIE-LAB	lab(40.50, 22.28, -52.95)
CIE-LCH	lch(40.50, 57.44, 292.82°)
OKLab	oklab(49.54% 0.0005 -0.1519)
OKLCH	oklch(49.54% 0.152 270.2)
XYZ	xyz(14.2808, 11.5553, 46.2684)
Luminance	0.1156 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4258B7 #B7A142

analogous

#4293B7 #4258B7 #6742B7

triadic

#4258B7 #B74258 #58B742

tetradic

#4258B7 #B74293 #B7A142 #42B767

square

#4258B7 #B74293 #B7A142 #42B767

split-complementary

#4258B7 #B76742 #93B742

monochromatic

#222D5D #32428A #4258B7 #6C7ECA #99A5DA

Accessibility & contrast

On white

6.34

#4258B7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.31

#4258B7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4258B7

6.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4258B7	#FFFFFF	#000000	##FFFFFF
##4258B7	1.00	6.34	3.31	6.34
#FFFFFF	6.34	1.00	21.00	1.00
#000000	3.31	21.00	1.00	21.00
##FFFFFF	6.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F65BA

Deuteranopia (green-blind)

#005AB5

Tritanopia (blue-blind)

#006E7F

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #4258b7;
/* rgb */ color: rgb(66, 88, 183);
/* oklch */ color: oklch(49.5% 0.152 270.2);

Tailwind

colors: {
  custom: {
    50: '#8286cd',
    500: '#4258b7',
    950: '#000000',
  },
}

SCSS

$custom: #4258b7;
$custom-light: #8286cd;
$custom-dark: #000000;

JSON

{
  "hex": "#4258b7",
  "rgb": {
    "r": 66,
    "g": 88,
    "b": 183
  },
  "hsl": {
    "h": 228.718,
    "s": 46.988,
    "l": 48.824
  },
  "oklch": {
    "l": 0.49541,
    "c": 0.15185,
    "h": 270.2
  },
  "luminance": 0.11557
}

Semantic roles & 50–950 ramp

primary

#4258B7

secondary

#C6BC8F

accent

#BE51D7

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0B13

muted

#7D7C82

Preview Lab

Preview with #4258B7

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

Preview Lab → · Contrast checker → · Palette generator →