#4258A7#4258A7

#4258A7 is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.4% C 0.129 H 269.4°. Best body text is #FFFFFF at 6.59:1 contrast (WCAG AA passes).

Color values

HEX	#4258A7
RGB	rgb(66, 88, 167)
HSL	hsl(227, 43%, 46%)
HSV	hsv(227, 60%, 65%)
CMYK	cmyk(60.5%, 47.3%, 0%, 34.5%)
CIE-LAB	lab(39.46, 16.64, -45.19)
CIE-LCH	lch(39.46, 48.15, 290.22°)
OKLab	oklab(48.41% -0.0013 -0.129)
OKLCH	oklch(48.41% 0.129 269.4)
XYZ	xyz(12.7092, 10.9267, 37.9910)
Luminance	0.1093 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4258A7 #A79142

analogous

#428AA7 #4258A7 #5E42A7

triadic

#4258A7 #A74258 #58A742

tetradic

#4258A7 #A7428A #A79142 #42A75E

square

#4258A7 #A7428A #A79142 #42A75E

split-complementary

#4258A7 #A75E42 #8AA742

monochromatic

#1F2A4F #31417B #4258A7 #6479C2 #909FD3

Accessibility & contrast

On white

6.59

#4258A7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#4258A7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4258A7

6.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4258A7	#FFFFFF	#000000	##FFFFFF
##4258A7	1.00	6.59	3.19	6.59
#FFFFFF	6.59	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3262AA

Deuteranopia (green-blind)

#2259A5

Tritanopia (blue-blind)

#006A77

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #4258a7;
/* rgb */ color: rgb(66, 88, 167);
/* oklch */ color: oklch(48.4% 0.129 269.4);

Tailwind

colors: {
  custom: {
    50: '#7f86c2',
    500: '#4258a7',
    950: '#000000',
  },
}

SCSS

$custom: #4258a7;
$custom-light: #7f86c2;
$custom-dark: #000000;

JSON

{
  "hex": "#4258a7",
  "rgb": {
    "r": 66,
    "g": 88,
    "b": 167
  },
  "hsl": {
    "h": 226.931,
    "s": 43.348,
    "l": 45.686
  },
  "oklch": {
    "l": 0.48414,
    "c": 0.12903,
    "h": 269.4
  },
  "luminance": 0.10928
}

Semantic roles & 50–950 ramp

primary

#4258A7

secondary

#BEB286

accent

#B855D3

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B12

muted

#7C7C81

Preview Lab

Preview with #4258A7

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

Preview Lab → · Contrast checker → · Palette generator →