#3857BF#3857BF

#3857BF is a mid, vivid blue. Relative luminance 0.114; OKLCH L 49.4% C 0.167 H 267.4°. Best body text is #FFFFFF at 6.40:1 contrast (WCAG AA passes).

Color values

HEX	#3857BF
RGB	rgb(56, 87, 191)
HSL	hsl(226, 55%, 48%)
HSV	hsv(226, 71%, 75%)
CMYK	cmyk(70.7%, 54.5%, 0%, 25.1%)
CIE-LAB	lab(40.27, 24.23, -58.02)
CIE-LCH	lch(40.27, 62.87, 292.67°)
OKLab	oklab(49.41% -0.0076 -0.167)
OKLCH	oklch(49.41% 0.167 267.4)
XYZ	xyz(14.4398, 11.4173, 50.7229)
Luminance	0.1142 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3857BF #BFA038

analogous

#389ABF #3857BF #5C38BF

triadic

#3857BF #BF3857 #57BF38

tetradic

#3857BF #BF389A #BFA038 #38BF5C

square

#3857BF #BF389A #BFA038 #38BF5C

split-complementary

#3857BF #BF5C38 #9ABF38

monochromatic

#1C2C60 #2A4190 #3857BF #637CD1 #92A4DF

Accessibility & contrast

On white

6.40

#3857BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.28

#3857BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3857BF

6.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3857BF	#FFFFFF	#000000	##FFFFFF
##3857BF	1.00	6.40	3.28	6.40
#FFFFFF	6.40	1.00	21.00	1.00
#000000	3.28	21.00	1.00	21.00
##FFFFFF	6.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0065C3

Deuteranopia (green-blind)

#0059BD

Tritanopia (blue-blind)

#007082

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #3857bf;
/* rgb */ color: rgb(56, 87, 191);
/* oklch */ color: oklch(49.4% 0.167 267.4);

Tailwind

colors: {
  custom: {
    50: '#7f85d3',
    500: '#3857bf',
    950: '#000000',
  },
}

SCSS

$custom: #3857bf;
$custom-light: #7f85d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3857bf",
  "rgb": {
    "r": 56,
    "g": 87,
    "b": 191
  },
  "hsl": {
    "h": 226.222,
    "s": 54.656,
    "l": 48.431
  },
  "oklch": {
    "l": 0.49409,
    "c": 0.16716,
    "h": 267.4
  },
  "luminance": 0.11419
}

Semantic roles & 50–950 ramp

primary

#3857BF

secondary

#CABB89

accent

#BC4ADE

background

#F8F8FD

surface

#F0EFFA

border

#CBCAD3

text

#0B0B14

muted

#7C7C83

Preview Lab

Preview with #3857BF

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

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