#3857CD#3857CD

#3857CD is a mid, vivid blue. Relative luminance 0.121; OKLCH L 50.5% C 0.186 H 267.9°. Best body text is #FFFFFF at 6.15:1 contrast (WCAG AA passes).

Color values

HEX	#3857CD
RGB	rgb(56, 87, 205)
HSL	hsl(228, 60%, 51%)
HSV	hsv(228, 73%, 80%)
CMYK	cmyk(72.7%, 57.6%, 0%, 19.6%)
CIE-LAB	lab(41.32, 29.34, -64.44)
CIE-LCH	lch(41.32, 70.81, 294.48°)
OKLab	oklab(50.52% -0.0069 -0.1859)
OKLCH	oklch(50.52% 0.186 267.9)
XYZ	xyz(16.0547, 12.0632, 59.2281)
Luminance	0.1206 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3857CD #CDAE38

analogous

#38A1CD #3857CD #6338CD

triadic

#3857CD #CD3857 #57CD38

tetradic

#3857CD #CD38A1 #CDAE38 #38CD63

square

#3857CD #CD38A1 #CDAE38 #38CD63

split-complementary

#3857CD #CD6338 #A1CD38

monochromatic

#1C2D6F #2841A0 #3857CD #6980D9 #9AAAE6

Accessibility & contrast

On white

6.15

#3857CD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#3857CD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3857CD

6.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3857CD	#FFFFFF	#000000	##FFFFFF
##3857CD	1.00	6.15	3.41	6.15
#FFFFFF	6.15	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069D1

Deuteranopia (green-blind)

#005BCB

Tritanopia (blue-blind)

#007489

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #3857cd;
/* rgb */ color: rgb(56, 87, 205);
/* oklch */ color: oklch(50.5% 0.186 267.9);

Tailwind

colors: {
  custom: {
    50: '#8286dd',
    500: '#3857cd',
    950: '#000000',
  },
}

SCSS

$custom: #3857cd;
$custom-light: #8286dd;
$custom-dark: #000000;

JSON

{
  "hex": "#3857cd",
  "rgb": {
    "r": 56,
    "g": 87,
    "b": 205
  },
  "hsl": {
    "h": 227.517,
    "s": 59.839,
    "l": 51.176
  },
  "oklch": {
    "l": 0.50519,
    "c": 0.18601,
    "h": 267.9
  },
  "luminance": 0.12065
}

Semantic roles & 50–950 ramp

primary

#3857CD

secondary

#D1C48F

accent

#C245E3

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3857CD

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

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