#4258BC#4258BC

#4258BC is a mid, vivid blue. Relative luminance 0.118; OKLCH L 49.9% C 0.159 H 270.3°. Best body text is #FFFFFF at 6.26:1 contrast (WCAG AA passes).

Color values

HEX	#4258BC
RGB	rgb(66, 88, 188)
HSL	hsl(229, 48%, 50%)
HSV	hsv(229, 65%, 74%)
CMYK	cmyk(64.9%, 53.2%, 0%, 26.3%)
CIE-LAB	lab(40.84, 24.04, -55.32)
CIE-LCH	lch(40.84, 60.32, 293.49°)
OKLab	oklab(49.91% 0.0009 -0.1588)
OKLCH	oklch(49.91% 0.159 270.3)
XYZ	xyz(14.8105, 11.7672, 49.0580)
Luminance	0.1177 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4258BC #BCA642

analogous

#4295BC #4258BC #6942BC

triadic

#4258BC #BC4258 #58BC42

tetradic

#4258BC #BC4295 #BCA642 #42BC69

square

#4258BC #BC4295 #BCA642 #42BC69

split-complementary

#4258BC #BC6942 #95BC42

monochromatic

#222E61 #32438F #4258BC #6F80CC #9CA8DC

Accessibility & contrast

On white

6.26

#4258BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.35

#4258BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4258BC

6.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4258BC	#FFFFFF	#000000	##FFFFFF
##4258BC	1.00	6.26	3.35	6.26
#FFFFFF	6.26	1.00	21.00	1.00
#000000	3.35	21.00	1.00	21.00
##FFFFFF	6.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1666C0

Deuteranopia (green-blind)

#005BBA

Tritanopia (blue-blind)

#007081

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #4258bc;
/* rgb */ color: rgb(66, 88, 188);
/* oklch */ color: oklch(49.9% 0.159 270.3);

Tailwind

colors: {
  custom: {
    50: '#8386d1',
    500: '#4258bc',
    950: '#000000',
  },
}

SCSS

$custom: #4258bc;
$custom-light: #8386d1;
$custom-dark: #000000;

JSON

{
  "hex": "#4258bc",
  "rgb": {
    "r": 66,
    "g": 88,
    "b": 188
  },
  "hsl": {
    "h": 229.18,
    "s": 48.031,
    "l": 49.804
  },
  "oklch": {
    "l": 0.4991,
    "c": 0.15882,
    "h": 270.3
  },
  "luminance": 0.11769
}

Semantic roles & 50–950 ramp

primary

#4258BC

secondary

#C9BF91

accent

#BF50D8

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0B14

muted

#7D7C82

Preview Lab

Preview with #4258BC

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

Preview Lab → · Contrast checker → · Palette generator →