#3857AF#3857AF

#3857AF is a mid, vivid blue. Relative luminance 0.108; OKLCH L 48.2% C 0.145 H 266.4°. Best body text is #FFFFFF at 6.67:1 contrast (WCAG AA passes).

Color values

HEX	#3857AF
RGB	rgb(56, 87, 175)
HSL	hsl(224, 52%, 45%)
HSV	hsv(224, 68%, 69%)
CMYK	cmyk(68%, 50.3%, 0%, 31.4%)
CIE-LAB	lab(39.16, 18.37, -50.43)
CIE-LCH	lch(39.16, 53.67, 290.01°)
OKLab	oklab(48.21% -0.0091 -0.1447)
OKLCH	oklch(48.21% 0.145 266.4)
XYZ	xyz(12.7743, 10.7510, 41.9511)
Luminance	0.1075 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3857AF #AF9038

analogous

#3892AF #3857AF #5538AF

triadic

#3857AF #AF3857 #57AF38

tetradic

#3857AF #AF3892 #AF9038 #38AF55

square

#3857AF #AF3892 #AF9038 #38AF55

split-complementary

#3857AF #AF5538 #92AF38

monochromatic

#1A2952 #294081 #3857AF #5A77CA #889DD9

Accessibility & contrast

On white

6.67

#3857AF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#3857AF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3857AF

6.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3857AF	#FFFFFF	#000000	##FFFFFF
##3857AF	1.00	6.67	3.15	6.67
#FFFFFF	6.67	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2562B2

Deuteranopia (green-blind)

#0057AD

Tritanopia (blue-blind)

#006C7B

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3857af;
/* rgb */ color: rgb(56, 87, 175);
/* oklch */ color: oklch(48.2% 0.145 266.4);

Tailwind

colors: {
  custom: {
    50: '#7c85c7',
    500: '#3857af',
    950: '#000000',
  },
}

SCSS

$custom: #3857af;
$custom-light: #7c85c7;
$custom-dark: #000000;

JSON

{
  "hex": "#3857af",
  "rgb": {
    "r": 56,
    "g": 87,
    "b": 175
  },
  "hsl": {
    "h": 224.37,
    "s": 51.515,
    "l": 45.294
  },
  "oklch": {
    "l": 0.48208,
    "c": 0.14495,
    "h": 266.4
  },
  "luminance": 0.10752
}

Semantic roles & 50–950 ramp

primary

#3857AF

secondary

#C3B280

accent

#B64DDB

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #3857AF

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

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