#4357BB#4357BB

#4357BB is a mid, vivid blue. Relative luminance 0.116; OKLCH L 49.7% C 0.158 H 271.0°. Best body text is #FFFFFF at 6.33:1 contrast (WCAG AA passes).

Color values

HEX	#4357BB
RGB	rgb(67, 87, 187)
HSL	hsl(230, 47%, 50%)
HSV	hsv(230, 64%, 73%)
CMYK	cmyk(64.2%, 53.5%, 0%, 26.7%)
CIE-LAB	lab(40.57, 24.50, -55.18)
CIE-LCH	lch(40.57, 60.37, 293.94°)
OKLab	oklab(49.69% 0.0028 -0.1584)
OKLCH	oklch(49.69% 0.158 271)
XYZ	xyz(14.6896, 11.5962, 48.4683)
Luminance	0.1160 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4357BB #BBA743

analogous

#4393BB #4357BB #6B43BB

triadic

#4357BB #BB4357 #57BB43

tetradic

#4357BB #BB4393 #BBA743 #43BB6B

square

#4357BB #BB4393 #BBA743 #43BB6B

split-complementary

#4357BB #BB6B43 #93BB43

monochromatic

#232D61 #33428E #4357BB #707FCC #9DA7DC

Accessibility & contrast

On white

6.33

#4357BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.32

#4357BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4357BB

6.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4357BB	#FFFFFF	#000000	##FFFFFF
##4357BB	1.00	6.33	3.32	6.33
#FFFFFF	6.33	1.00	21.00	1.00
#000000	3.32	21.00	1.00	21.00
##FFFFFF	6.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1465BF

Deuteranopia (green-blind)

#005AB9

Tritanopia (blue-blind)

#006F80

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #4357bb;
/* rgb */ color: rgb(67, 87, 187);
/* oklch */ color: oklch(49.7% 0.158 271.0);

Tailwind

colors: {
  custom: {
    50: '#8486d0',
    500: '#4357bb',
    950: '#000000',
  },
}

SCSS

$custom: #4357bb;
$custom-light: #8486d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4357bb",
  "rgb": {
    "r": 67,
    "g": 87,
    "b": 187
  },
  "hsl": {
    "h": 230,
    "s": 47.244,
    "l": 49.804
  },
  "oklch": {
    "l": 0.49694,
    "c": 0.15843,
    "h": 271
  },
  "luminance": 0.11598
}

Semantic roles & 50–950 ramp

primary

#4357BB

secondary

#C8BF92

accent

#C151D7

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0B14

muted

#7D7C82

Preview Lab

Preview with #4357BB

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

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