#3457BB#3457BB

#3457BB is a mid, vivid blue. Relative luminance 0.111; OKLCH L 48.9% C 0.163 H 266.0°. Best body text is #FFFFFF at 6.51:1 contrast (WCAG AA passes).

Color values

HEX	#3457BB
RGB	rgb(52, 87, 187)
HSL	hsl(224, 56%, 47%)
HSV	hsv(224, 72%, 73%)
CMYK	cmyk(72.2%, 53.5%, 0%, 26.7%)
CIE-LAB	lab(39.80, 22.21, -56.45)
CIE-LCH	lch(39.80, 60.66, 291.47°)
OKLab	oklab(48.91% -0.0114 -0.1625)
OKLCH	oklch(48.91% 0.163 266)
XYZ	xyz(13.7909, 11.1329, 48.4261)
Luminance	0.1113 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3457BB #BB9834

analogous

#349BBB #3457BB #5434BB

triadic

#3457BB #BB3457 #57BB34

tetradic

#3457BB #BB349B #BB9834 #34BB54

square

#3457BB #BB349B #BB9834 #34BB54

split-complementary

#3457BB #BB5434 #9BBB34

monochromatic

#192A5B #27418B #3457BB #5B7AD1 #8BA0DF

Accessibility & contrast

On white

6.51

#3457BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#3457BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3457BB

6.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3457BB	#FFFFFF	#000000	##FFFFFF
##3457BB	1.00	6.51	3.23	6.51
#FFFFFF	6.51	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C64BF

Deuteranopia (green-blind)

#0058B9

Tritanopia (blue-blind)

#006F80

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3457bb;
/* rgb */ color: rgb(52, 87, 187);
/* oklch */ color: oklch(48.9% 0.163 266.0);

Tailwind

colors: {
  custom: {
    50: '#7d85d0',
    500: '#3457bb',
    950: '#000000',
  },
}

SCSS

$custom: #3457bb;
$custom-light: #7d85d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3457bb",
  "rgb": {
    "r": 52,
    "g": 87,
    "b": 187
  },
  "hsl": {
    "h": 224.444,
    "s": 56.485,
    "l": 46.863
  },
  "oklch": {
    "l": 0.48911,
    "c": 0.16287,
    "h": 266
  },
  "luminance": 0.11134
}

Semantic roles & 50–950 ramp

primary

#3457BB

secondary

#C9B682

accent

#B848E0

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #3457BB

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

Preview Lab → · Contrast checker → · Palette generator →