#3857DB#3857DB

#3857DB is a mid, highly saturated blue. Relative luminance 0.128; OKLCH L 51.7% C 0.204 H 268.1°. Best body text is #FFFFFF at 5.91:1 contrast (WCAG AA passes).

Color values

HEX	#3857DB
RGB	rgb(56, 87, 219)
HSL	hsl(229, 69%, 54%)
HSV	hsv(229, 74%, 86%)
CMYK	cmyk(74.4%, 60.3%, 0%, 14.1%)
CIE-LAB	lab(42.41, 34.39, -70.68)
CIE-LCH	lch(42.41, 78.61, 295.95°)
OKLab	oklab(51.68% -0.0067 -0.2042)
OKLCH	oklch(51.68% 0.204 268.1)
XYZ	xyz(17.8208, 12.7697, 68.5297)
Luminance	0.1277 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3857DB #DBBC38

analogous

#38A9DB #3857DB #6B38DB

triadic

#3857DB #DB3857 #57DB38

tetradic

#3857DB #DB38A9 #DBBC38 #38DB6B

square

#3857DB #DB38A9 #DBBC38 #38DB6B

split-complementary

#3857DB #DB6B38 #A9DB38

monochromatic

#172C81 #213DB5 #3857DB #6C83E4 #A0AFEE

Accessibility & contrast

On white

5.91

#3857DB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.55

#3857DB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3857DB

5.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3857DB	#FFFFFF	#000000	##FFFFFF
##3857DB	1.00	5.91	3.55	5.91
#FFFFFF	5.91	1.00	21.00	1.00
#000000	3.55	21.00	1.00	21.00
##FFFFFF	5.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006CDF

Deuteranopia (green-blind)

#005DD8

Tritanopia (blue-blind)

#007991

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3857db;
/* rgb */ color: rgb(56, 87, 219);
/* oklch */ color: oklch(51.7% 0.204 268.1);

Tailwind

colors: {
  custom: {
    50: '#8686e7',
    500: '#3857db',
    950: '#000000',
  },
}

SCSS

$custom: #3857db;
$custom-light: #8686e7;
$custom-dark: #000000;

JSON

{
  "hex": "#3857db",
  "rgb": {
    "r": 56,
    "g": 87,
    "b": 219
  },
  "hsl": {
    "h": 228.589,
    "s": 69.362,
    "l": 53.922
  },
  "oklch": {
    "l": 0.51679,
    "c": 0.20432,
    "h": 268.1
  },
  "luminance": 0.12772
}

Semantic roles & 50–950 ramp

primary

#3857DB

secondary

#DACD95

accent

#CB3CEC

background

#F9F8FE

surface

#F1EFFD

border

#CBCAD5

text

#0D0B16

muted

#7E7C84

Preview Lab

Preview with #3857DB

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

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