#3D57BC#3D57BC

#3D57BC is a mid, vivid blue. Relative luminance 0.114; OKLCH L 49.4% C 0.162 H 268.9°. Best body text is #FFFFFF at 6.39:1 contrast (WCAG AA passes).

Color values

HEX	#3D57BC
RGB	rgb(61, 87, 188)
HSL	hsl(228, 51%, 49%)
HSV	hsv(228, 68%, 74%)
CMYK	cmyk(67.6%, 53.7%, 0%, 26.3%)
CIE-LAB	lab(40.31, 23.88, -56.20)
CIE-LCH	lch(40.31, 61.06, 293.02°)
OKLab	oklab(49.43% -0.0031 -0.1615)
OKLCH	oklch(49.43% 0.162 268.9)
XYZ	xyz(14.4067, 11.4380, 49.0157)
Luminance	0.1144 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D57BC #BCA23D

analogous

#3D97BC #3D57BC #633DBC

triadic

#3D57BC #BC3D57 #57BC3D

tetradic

#3D57BC #BC3D97 #BCA23D #3DBC63

square

#3D57BC #BC3D97 #BCA23D #3DBC63

split-complementary

#3D57BC #BC633D #97BC3D

monochromatic

#1F2C60 #2E428E #3D57BC #687DCE #96A5DD

Accessibility & contrast

On white

6.39

#3D57BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#3D57BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3D57BC

6.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D57BC	#FFFFFF	#000000	##FFFFFF
##3D57BC	1.00	6.39	3.29	6.39
#FFFFFF	6.39	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E65C0

Deuteranopia (green-blind)

#0059BA

Tritanopia (blue-blind)

#006F81

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #3d57bc;
/* rgb */ color: rgb(61, 87, 188);
/* oklch */ color: oklch(49.4% 0.162 268.9);

Tailwind

colors: {
  custom: {
    50: '#8186d1',
    500: '#3d57bc',
    950: '#000000',
  },
}

SCSS

$custom: #3d57bc;
$custom-light: #8186d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3d57bc",
  "rgb": {
    "r": 61,
    "g": 87,
    "b": 188
  },
  "hsl": {
    "h": 227.717,
    "s": 51.004,
    "l": 48.824
  },
  "oklch": {
    "l": 0.49434,
    "c": 0.16156,
    "h": 268.9
  },
  "luminance": 0.11439
}

Semantic roles & 50–950 ramp

primary

#3D57BC

secondary

#C9BC8C

accent

#BE4DDA

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0B14

muted

#7D7C82

Preview Lab

Preview with #3D57BC

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

Preview Lab → · Contrast checker → · Palette generator →