#4259B2#4259B2

#4259B2 is a mid, vivid blue. Relative luminance 0.115; OKLCH L 49.4% C 0.143 H 269.6°. Best body text is #FFFFFF at 6.36:1 contrast (WCAG AA passes).

Color values

HEX	#4259B2
RGB	rgb(66, 89, 178)
HSL	hsl(228, 46%, 48%)
HSV	hsv(228, 63%, 70%)
CMYK	cmyk(62.9%, 50%, 0%, 30.2%)
CIE-LAB	lab(40.44, 19.87, -50.11)
CIE-LCH	lch(40.44, 53.91, 291.62°)
OKLab	oklab(49.39% -0.001 -0.1435)
OKLCH	oklch(49.39% 0.144 269.6)
XYZ	xyz(13.8523, 11.5162, 43.6037)
Luminance	0.1152 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4259B2 #B29B42

analogous

#4291B2 #4259B2 #6342B2

triadic

#4259B2 #B24259 #59B242

tetradic

#4259B2 #B24291 #B29B42 #42B263

square

#4259B2 #B24291 #B29B42 #42B263

split-complementary

#4259B2 #B26342 #91B242

monochromatic

#212C59 #314385 #4259B2 #6A7DC8 #96A4D8

Accessibility & contrast

On white

6.36

#4259B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.30

#4259B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4259B2

6.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4259B2	#FFFFFF	#000000	##FFFFFF
##4259B2	1.00	6.36	3.30	6.36
#FFFFFF	6.36	1.00	21.00	1.00
#000000	3.30	21.00	1.00	21.00
##FFFFFF	6.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2965B5

Deuteranopia (green-blind)

#0E5BB0

Tritanopia (blue-blind)

#006E7D

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #4259b2;
/* rgb */ color: rgb(66, 89, 178);
/* oklch */ color: oklch(49.4% 0.143 269.6);

Tailwind

colors: {
  custom: {
    50: '#8187ca',
    500: '#4259b2',
    950: '#000000',
  },
}

SCSS

$custom: #4259b2;
$custom-light: #8187ca;
$custom-dark: #000000;

JSON

{
  "hex": "#4259b2",
  "rgb": {
    "r": 66,
    "g": 89,
    "b": 178
  },
  "hsl": {
    "h": 227.679,
    "s": 45.902,
    "l": 47.843
  },
  "oklch": {
    "l": 0.49386,
    "c": 0.1435,
    "h": 269.6
  },
  "luminance": 0.11517
}

Semantic roles & 50–950 ramp

primary

#4259B2

secondary

#C4B88C

accent

#BB52D6

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #4259B2

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

Preview Lab → · Contrast checker → · Palette generator →