#4259B3#4259B3

#4259B3 is a mid, vivid blue. Relative luminance 0.116; OKLCH L 49.5% C 0.145 H 269.7°. Best body text is #FFFFFF at 6.34:1 contrast (WCAG AA passes).

Color values

HEX	#4259B3
RGB	rgb(66, 89, 179)
HSL	hsl(228, 46%, 48%)
HSV	hsv(228, 63%, 70%)
CMYK	cmyk(63.1%, 50.3%, 0%, 29.8%)
CIE-LAB	lab(40.50, 20.22, -50.60)
CIE-LCH	lch(40.50, 54.49, 291.78°)
OKLab	oklab(49.46% -0.0008 -0.1449)
OKLCH	oklch(49.46% 0.145 269.7)
XYZ	xyz(13.9531, 11.5565, 44.1344)
Luminance	0.1156 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4259B3 #B39C42

analogous

#4291B3 #4259B3 #6442B3

triadic

#4259B3 #B34259 #59B342

tetradic

#4259B3 #B34291 #B39C42 #42B364

square

#4259B3 #B34291 #B39C42 #42B364

split-complementary

#4259B3 #B36442 #91B342

monochromatic

#212D5A #324386 #4259B3 #6A7DC8 #97A4D9

Accessibility & contrast

On white

6.34

#4259B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.31

#4259B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4259B3

6.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4259B3	#FFFFFF	#000000	##FFFFFF
##4259B3	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)

#2865B6

Deuteranopia (green-blind)

#0B5BB1

Tritanopia (blue-blind)

#006E7D

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #4259b3;
/* rgb */ color: rgb(66, 89, 179);
/* oklch */ color: oklch(49.5% 0.145 269.7);

Tailwind

colors: {
  custom: {
    50: '#8287ca',
    500: '#4259b3',
    950: '#000000',
  },
}

SCSS

$custom: #4259b3;
$custom-light: #8287ca;
$custom-dark: #000000;

JSON

{
  "hex": "#4259b3",
  "rgb": {
    "r": 66,
    "g": 89,
    "b": 179
  },
  "hsl": {
    "h": 227.788,
    "s": 46.122,
    "l": 48.039
  },
  "oklch": {
    "l": 0.49457,
    "c": 0.14492,
    "h": 269.7
  },
  "luminance": 0.11558
}

Semantic roles & 50–950 ramp

primary

#4259B3

secondary

#C4B98C

accent

#BB52D6

background

#F8F8FC

surface

#F0EFF8

border

#CBCAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #4259B3

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

Preview Lab → · Contrast checker → · Palette generator →