#3D5BCB#3D5BCB

#3D5BCB is a mid, vivid blue. Relative luminance 0.128; OKLCH L 51.4% C 0.177 H 268.2°. Best body text is #FFFFFF at 5.90:1 contrast (WCAG AA passes).

Color values

HEX	#3D5BCB
RGB	rgb(61, 91, 203)
HSL	hsl(227, 58%, 52%)
HSV	hsv(227, 70%, 80%)
CMYK	cmyk(70%, 55.2%, 0%, 20.4%)
CIE-LAB	lab(42.44, 26.71, -61.46)
CIE-LCH	lch(42.44, 67.01, 293.49°)
OKLab	oklab(51.38% -0.0056 -0.1769)
OKLCH	oklch(51.38% 0.177 268.2)
XYZ	xyz(16.4413, 12.7844, 58.0895)
Luminance	0.1279 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D5BCB #CBAD3D

analogous

#3DA2CB #3D5BCB #663DCB

triadic

#3D5BCB #CB3D5B #5BCB3D

tetradic

#3D5BCB #CB3DA2 #CBAD3D #3DCB66

square

#3D5BCB #CB3DA2 #CBAD3D #3DCB66

split-complementary

#3D5BCB #CB663D #A2CB3D

monochromatic

#1E2F70 #2B44A0 #3D5BCB #6D84D8 #9EADE5

Accessibility & contrast

On white

5.90

#3D5BCB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#3D5BCB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3D5BCB

5.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D5BCB	#FFFFFF	#000000	##FFFFFF
##3D5BCB	1.00	5.90	3.56	5.90
#FFFFFF	5.90	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006BCF

Deuteranopia (green-blind)

#005EC9

Tritanopia (blue-blind)

#00768A

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3d5bcb;
/* rgb */ color: rgb(61, 91, 203);
/* oklch */ color: oklch(51.4% 0.177 268.2);

Tailwind

colors: {
  custom: {
    50: '#8489dc',
    500: '#3d5bcb',
    950: '#000000',
  },
}

SCSS

$custom: #3d5bcb;
$custom-light: #8489dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3d5bcb",
  "rgb": {
    "r": 61,
    "g": 91,
    "b": 203
  },
  "hsl": {
    "h": 227.324,
    "s": 57.724,
    "l": 51.765
  },
  "oklch": {
    "l": 0.51376,
    "c": 0.17704,
    "h": 268.2
  },
  "luminance": 0.12786
}

Semantic roles & 50–950 ramp

primary

#3D5BCB

secondary

#D1C493

accent

#C047E1

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3D5BCB

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

Preview Lab → · Contrast checker → · Palette generator →