#3457B8#3457B8

#3457B8 is a mid, vivid blue. Relative luminance 0.110; OKLCH L 48.7% C 0.159 H 265.8°. Best body text is #FFFFFF at 6.56:1 contrast (WCAG AA passes).

Color values

HEX	#3457B8
RGB	rgb(52, 87, 184)
HSL	hsl(224, 56%, 46%)
HSV	hsv(224, 72%, 72%)
CMYK	cmyk(71.7%, 52.7%, 0%, 27.8%)
CIE-LAB	lab(39.59, 21.09, -55.04)
CIE-LCH	lch(39.59, 58.94, 290.97°)
OKLab	oklab(48.68% -0.0117 -0.1583)
OKLCH	oklch(48.68% 0.159 265.8)
XYZ	xyz(13.4731, 11.0057, 46.7524)
Luminance	0.1101 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3457B8 #B89534

analogous

#3499B8 #3457B8 #5334B8

triadic

#3457B8 #B83457 #57B834

tetradic

#3457B8 #B83499 #B89534 #34B853

square

#3457B8 #B83499 #B89534 #34B853

split-complementary

#3457B8 #B85334 #99B834

monochromatic

#192A59 #274088 #3457B8 #5979D0 #899FDE

Accessibility & contrast

On white

6.56

#3457B8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#3457B8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3457B8

6.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3457B8	#FFFFFF	#000000	##FFFFFF
##3457B8	1.00	6.56	3.20	6.56
#FFFFFF	6.56	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1564BB

Deuteranopia (green-blind)

#0057B6

Tritanopia (blue-blind)

#006E7F

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3457b8;
/* rgb */ color: rgb(52, 87, 184);
/* oklch */ color: oklch(48.7% 0.159 265.8);

Tailwind

colors: {
  custom: {
    50: '#7c85ce',
    500: '#3457b8',
    950: '#000000',
  },
}

SCSS

$custom: #3457b8;
$custom-light: #7c85ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3457b8",
  "rgb": {
    "r": 52,
    "g": 87,
    "b": 184
  },
  "hsl": {
    "h": 224.091,
    "s": 55.932,
    "l": 46.275
  },
  "oklch": {
    "l": 0.48682,
    "c": 0.15874,
    "h": 265.8
  },
  "luminance": 0.11007
}

Semantic roles & 50–950 ramp

primary

#3457B8

secondary

#C8B580

accent

#B749DF

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #3457B8

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

Preview Lab → · Contrast checker → · Palette generator →