#3D57CB#3D57CB

#3D57CB is a mid, vivid blue. Relative luminance 0.121; OKLCH L 50.6% C 0.182 H 269.3°. Best body text is #FFFFFF at 6.13:1 contrast (WCAG AA passes).

Color values

HEX	#3D57CB
RGB	rgb(61, 87, 203)
HSL	hsl(229, 58%, 52%)
HSV	hsv(229, 70%, 80%)
CMYK	cmyk(70%, 57.1%, 0%, 20.4%)
CIE-LAB	lab(41.40, 29.27, -63.13)
CIE-LCH	lch(41.40, 69.59, 294.87°)
OKLab	oklab(50.6% -0.0024 -0.1819)
OKLCH	oklch(50.6% 0.182 269.3)
XYZ	xyz(16.1085, 12.1187, 57.9785)
Luminance	0.1212 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D57CB #CBB13D

analogous

#3D9ECB #3D57CB #6A3DCB

triadic

#3D57CB #CB3D57 #57CB3D

tetradic

#3D57CB #CB3D9E #CBB13D #3DCB6A

square

#3D57CB #CB3D9E #CBB13D #3DCB6A

split-complementary

#3D57CB #CB6A3D #9ECB3D

monochromatic

#1E2D70 #2B40A0 #3D57CB #6D81D8 #9EABE5

Accessibility & contrast

On white

6.13

#3D57CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.42

#3D57CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3D57CB

6.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D57CB	#FFFFFF	#000000	##FFFFFF
##3D57CB	1.00	6.13	3.42	6.13
#FFFFFF	6.13	1.00	21.00	1.00
#000000	3.42	21.00	1.00	21.00
##FFFFFF	6.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068CF

Deuteranopia (green-blind)

#005BC9

Tritanopia (blue-blind)

#007488

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #3d57cb;
/* rgb */ color: rgb(61, 87, 203);
/* oklch */ color: oklch(50.6% 0.182 269.3);

Tailwind

colors: {
  custom: {
    50: '#8486dc',
    500: '#3d57cb',
    950: '#000000',
  },
}

SCSS

$custom: #3d57cb;
$custom-light: #8486dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3d57cb",
  "rgb": {
    "r": 61,
    "g": 87,
    "b": 203
  },
  "hsl": {
    "h": 229.014,
    "s": 57.724,
    "l": 51.765
  },
  "oklch": {
    "l": 0.50602,
    "c": 0.18195,
    "h": 269.3
  },
  "luminance": 0.1212
}

Semantic roles & 50–950 ramp

primary

#3D57CB

secondary

#D1C693

accent

#C547E1

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3D57CB

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

Preview Lab → · Contrast checker → · Palette generator →