#3457CF#3457CF

#3457CF is a mid, vivid blue. Relative luminance 0.121; OKLCH L 50.5% C 0.190 H 266.9°. Best body text is #FFFFFF at 6.16:1 contrast (WCAG AA passes).

Color values

HEX	#3457CF
RGB	rgb(52, 87, 207)
HSL	hsl(226, 62%, 51%)
HSV	hsv(226, 75%, 81%)
CMYK	cmyk(74.9%, 58%, 0%, 18.8%)
CIE-LAB	lab(41.30, 29.59, -65.64)
CIE-LCH	lch(41.30, 72.00, 294.27°)
OKLab	oklab(50.5% -0.0103 -0.1895)
OKLCH	oklch(50.5% 0.19 266.9)
XYZ	xyz(16.0829, 12.0497, 60.4976)
Luminance	0.1205 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3457CF #CFAC34

analogous

#34A4CF #3457CF #5E34CF

triadic

#3457CF #CF3457 #57CF34

tetradic

#3457CF #CF34A4 #CFAC34 #34CF5E

square

#3457CF #CF34A4 #CFAC34 #34CF5E

split-complementary

#3457CF #CF5E34 #A4CF34

monochromatic

#1A2D6E #2641A0 #3457CF #6580DB #97A9E6

Accessibility & contrast

On white

6.16

#3457CF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#3457CF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3457CF

6.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3457CF	#FFFFFF	#000000	##FFFFFF
##3457CF	1.00	6.16	3.41	6.16
#FFFFFF	6.16	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069D3

Deuteranopia (green-blind)

#005ACD

Tritanopia (blue-blind)

#00758A

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #3457cf;
/* rgb */ color: rgb(52, 87, 207);
/* oklch */ color: oklch(50.5% 0.190 266.9);

Tailwind

colors: {
  custom: {
    50: '#8186df',
    500: '#3457cf',
    950: '#000000',
  },
}

SCSS

$custom: #3457cf;
$custom-light: #8186df;
$custom-dark: #000000;

JSON

{
  "hex": "#3457cf",
  "rgb": {
    "r": 52,
    "g": 87,
    "b": 207
  },
  "hsl": {
    "h": 226.452,
    "s": 61.753,
    "l": 50.784
  },
  "oklch": {
    "l": 0.50503,
    "c": 0.18975,
    "h": 266.9
  },
  "luminance": 0.12051
}

Semantic roles & 50–950 ramp

primary

#3457CF

secondary

#D2C28D

accent

#C043E5

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3457CF

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

Preview Lab → · Contrast checker → · Palette generator →