#3857CA#3857CA

#3857CA is a mid, vivid blue. Relative luminance 0.119; OKLCH L 50.3% C 0.182 H 267.8°. Best body text is #FFFFFF at 6.21:1 contrast (WCAG AA passes).

Color values

HEX	#3857CA
RGB	rgb(56, 87, 202)
HSL	hsl(227, 58%, 51%)
HSV	hsv(227, 72%, 79%)
CMYK	cmyk(72.3%, 56.9%, 0%, 20.8%)
CIE-LAB	lab(41.09, 28.25, -63.08)
CIE-LCH	lch(41.09, 69.12, 294.12°)
OKLab	oklab(50.28% -0.007 -0.1819)
OKLCH	oklch(50.28% 0.182 267.8)
XYZ	xyz(15.6961, 11.9198, 57.3392)
Luminance	0.1192 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3857CA #CAAB38

analogous

#38A0CA #3857CA #6238CA

triadic

#3857CA #CA3857 #57CA38

tetradic

#3857CA #CA38A0 #CAAB38 #38CA62

square

#3857CA #CA38A0 #CAAB38 #38CA62

split-complementary

#3857CA #CA6238 #A0CA38

monochromatic

#1D2D6B #29429B #3857CA #6880D7 #99A9E4

Accessibility & contrast

On white

6.21

#3857CA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#3857CA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3857CA

6.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3857CA	#FFFFFF	#000000	##FFFFFF
##3857CA	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)

#0068CE

Deuteranopia (green-blind)

#005AC8

Tritanopia (blue-blind)

#007388

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #3857ca;
/* rgb */ color: rgb(56, 87, 202);
/* oklch */ color: oklch(50.3% 0.182 267.8);

Tailwind

colors: {
  custom: {
    50: '#8286db',
    500: '#3857ca',
    950: '#000000',
  },
}

SCSS

$custom: #3857ca;
$custom-light: #8286db;
$custom-dark: #000000;

JSON

{
  "hex": "#3857ca",
  "rgb": {
    "r": 56,
    "g": 87,
    "b": 202
  },
  "hsl": {
    "h": 227.26,
    "s": 57.937,
    "l": 50.588
  },
  "oklch": {
    "l": 0.50277,
    "c": 0.18202,
    "h": 267.8
  },
  "luminance": 0.11921
}

Semantic roles & 50–950 ramp

primary

#3857CA

secondary

#CFC28E

accent

#C047E1

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3857CA

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

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