#3457CC#3457CC

#3457CC is a mid, vivid blue. Relative luminance 0.119; OKLCH L 50.3% C 0.186 H 266.8°. Best body text is #FFFFFF at 6.21:1 contrast (WCAG AA passes).

Color values

HEX	#3457CC
RGB	rgb(52, 87, 204)
HSL	hsl(226, 60%, 50%)
HSV	hsv(226, 75%, 80%)
CMYK	cmyk(74.5%, 57.4%, 0%, 20%)
CIE-LAB	lab(41.06, 28.49, -64.28)
CIE-LCH	lch(41.06, 70.31, 293.90°)
OKLab	oklab(50.26% -0.0104 -0.1855)
OKLCH	oklch(50.26% 0.186 266.8)
XYZ	xyz(15.7196, 11.9044, 58.5843)
Luminance	0.1191 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3457CC #CCA934

analogous

#34A3CC #3457CC #5D34CC

triadic

#3457CC #CC3457 #57CC34

tetradic

#3457CC #CC34A3 #CCA934 #34CC5D

square

#3457CC #CC34A3 #CCA934 #34CC5D

split-complementary

#3457CC #CC5D34 #A3CC34

monochromatic

#1B2D6B #27429C #3457CC #657FD8 #96A8E5

Accessibility & contrast

On white

6.21

#3457CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#3457CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3457CC

6.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3457CC	#FFFFFF	#000000	##FFFFFF
##3457CC	1.00	6.21	3.38	6.21
#FFFFFF	6.21	1.00	21.00	1.00
#000000	3.38	21.00	1.00	21.00
##FFFFFF	6.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068D0

Deuteranopia (green-blind)

#005ACA

Tritanopia (blue-blind)

#007489

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #3457cc;
/* rgb */ color: rgb(52, 87, 204);
/* oklch */ color: oklch(50.3% 0.186 266.8);

Tailwind

colors: {
  custom: {
    50: '#8186dc',
    500: '#3457cc',
    950: '#000000',
  },
}

SCSS

$custom: #3457cc;
$custom-light: #8186dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3457cc",
  "rgb": {
    "r": 52,
    "g": 87,
    "b": 204
  },
  "hsl": {
    "h": 226.184,
    "s": 59.843,
    "l": 50.196
  },
  "oklch": {
    "l": 0.50257,
    "c": 0.18578,
    "h": 266.8
  },
  "luminance": 0.11906
}

Semantic roles & 50–950 ramp

primary

#3457CC

secondary

#D0C08C

accent

#BF45E3

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3457CC

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

Preview Lab → · Contrast checker → · Palette generator →