#3D55CB#3D55CB

#3D55CB is a mid, vivid blue. Relative luminance 0.118; OKLCH L 50.2% C 0.184 H 269.7°. Best body text is #FFFFFF at 6.25:1 contrast (WCAG AA passes).

Color values

HEX	#3D55CB
RGB	rgb(61, 85, 203)
HSL	hsl(230, 58%, 52%)
HSV	hsv(230, 70%, 80%)
CMYK	cmyk(70%, 58.1%, 0%, 20.4%)
CIE-LAB	lab(40.90, 30.54, -63.96)
CIE-LCH	lch(40.90, 70.88, 295.53°)
OKLab	oklab(50.22% -0.0008 -0.1844)
OKLCH	oklch(50.22% 0.184 269.7)
XYZ	xyz(15.9488, 11.7993, 57.9253)
Luminance	0.1180 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D55CB #CBB33D

analogous

#3D9CCB #3D55CB #6C3DCB

triadic

#3D55CB #CB3D55 #55CB3D

tetradic

#3D55CB #CB3D9C #CBB33D #3DCB6C

square

#3D55CB #CB3D9C #CBB33D #3DCB6C

split-complementary

#3D55CB #CB6C3D #9CCB3D

monochromatic

#1E2C70 #2B3FA0 #3D55CB #6D7FD8 #9EAAE5

Accessibility & contrast

On white

6.25

#3D55CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.36

#3D55CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3D55CB

6.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D55CB	#FFFFFF	#000000	##FFFFFF
##3D55CB	1.00	6.25	3.36	6.25
#FFFFFF	6.25	1.00	21.00	1.00
#000000	3.36	21.00	1.00	21.00
##FFFFFF	6.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0067CF

Deuteranopia (green-blind)

#005AC9

Tritanopia (blue-blind)

#007288

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #3d55cb;
/* rgb */ color: rgb(61, 85, 203);
/* oklch */ color: oklch(50.2% 0.184 269.7);

Tailwind

colors: {
  custom: {
    50: '#8484dc',
    500: '#3d55cb',
    950: '#000000',
  },
}

SCSS

$custom: #3d55cb;
$custom-light: #8484dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3d55cb",
  "rgb": {
    "r": 61,
    "g": 85,
    "b": 203
  },
  "hsl": {
    "h": 229.859,
    "s": 57.724,
    "l": 51.765
  },
  "oklch": {
    "l": 0.50222,
    "c": 0.18439,
    "h": 269.7
  },
  "luminance": 0.11801
}

Semantic roles & 50–950 ramp

primary

#3D55CB

secondary

#D1C793

accent

#C747E1

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3D55CB

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

Preview Lab → · Contrast checker → · Palette generator →