#4258B8#4258B8

#4258B8 is a mid, vivid blue. Relative luminance 0.116; OKLCH L 49.6% C 0.153 H 270.2°. Best body text is #FFFFFF at 6.33:1 contrast (WCAG AA passes).

Color values

HEX	#4258B8
RGB	rgb(66, 88, 184)
HSL	hsl(229, 47%, 49%)
HSV	hsv(229, 64%, 72%)
CMYK	cmyk(64.1%, 52.2%, 0%, 27.8%)
CIE-LAB	lab(40.57, 22.63, -53.42)
CIE-LCH	lch(40.57, 58.02, 292.96°)
OKLab	oklab(49.61% 0.0006 -0.1532)
OKLCH	oklch(49.61% 0.153 270.2)
XYZ	xyz(14.3853, 11.5971, 46.8185)
Luminance	0.1160 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4258B8 #B8A242

analogous

#4293B8 #4258B8 #6742B8

triadic

#4258B8 #B84258 #58B842

tetradic

#4258B8 #B84293 #B8A242 #42B867

square

#4258B8 #B84293 #B8A242 #42B867

split-complementary

#4258B8 #B86742 #93B842

monochromatic

#222D5E #32428B #4258B8 #6D7ECB #9AA6DB

Accessibility & contrast

On white

6.33

#4258B8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.32

#4258B8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4258B8

6.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4258B8	#FFFFFF	#000000	##FFFFFF
##4258B8	1.00	6.33	3.32	6.33
#FFFFFF	6.33	1.00	21.00	1.00
#000000	3.32	21.00	1.00	21.00
##FFFFFF	6.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E65BB

Deuteranopia (green-blind)

#005BB6

Tritanopia (blue-blind)

#006E7F

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #4258b8;
/* rgb */ color: rgb(66, 88, 184);
/* oklch */ color: oklch(49.6% 0.153 270.2);

Tailwind

colors: {
  custom: {
    50: '#8286ce',
    500: '#4258b8',
    950: '#000000',
  },
}

SCSS

$custom: #4258b8;
$custom-light: #8286ce;
$custom-dark: #000000;

JSON

{
  "hex": "#4258b8",
  "rgb": {
    "r": 66,
    "g": 88,
    "b": 184
  },
  "hsl": {
    "h": 228.814,
    "s": 47.2,
    "l": 49.02
  },
  "oklch": {
    "l": 0.49614,
    "c": 0.15325,
    "h": 270.2
  },
  "luminance": 0.11598
}

Semantic roles & 50–950 ramp

primary

#4258B8

secondary

#C7BC8F

accent

#BE51D7

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0B14

muted

#7D7C82

Preview Lab

Preview with #4258B8

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

Preview Lab → · Contrast checker → · Palette generator →