#3658CD#3658CD

#3658CD is a mid, vivid blue. Relative luminance 0.122; OKLCH L 50.6% C 0.185 H 267.1°. Best body text is #FFFFFF at 6.11:1 contrast (WCAG AA passes).

Color values

HEX	#3658CD
RGB	rgb(54, 88, 205)
HSL	hsl(226, 60%, 51%)
HSV	hsv(226, 74%, 80%)
CMYK	cmyk(73.7%, 57.1%, 0%, 19.6%)
CIE-LAB	lab(41.48, 28.45, -64.17)
CIE-LCH	lch(41.48, 70.20, 293.91°)
OKLab	oklab(50.62% -0.0094 -0.1851)
OKLCH	oklch(50.62% 0.185 267.1)
XYZ	xyz(16.0266, 12.1698, 59.2501)
Luminance	0.1217 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3658CD #CDAB36

analogous

#36A3CD #3658CD #5F36CD

triadic

#3658CD #CD3658 #58CD36

tetradic

#3658CD #CD36A3 #CDAB36 #36CD5F

square

#3658CD #CD36A3 #CDAB36 #36CD5F

split-complementary

#3658CD #CD5F36 #A3CD36

monochromatic

#1B2E6D #27429E #3658CD #6781D9 #98A9E5

Accessibility & contrast

On white

6.11

#3658CD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.43

#3658CD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3658CD

6.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3658CD	#FFFFFF	#000000	##FFFFFF
##3658CD	1.00	6.11	3.43	6.11
#FFFFFF	6.11	1.00	21.00	1.00
#000000	3.43	21.00	1.00	21.00
##FFFFFF	6.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069D1

Deuteranopia (green-blind)

#005BCB

Tritanopia (blue-blind)

#00758A

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #3658cd;
/* rgb */ color: rgb(54, 88, 205);
/* oklch */ color: oklch(50.6% 0.185 267.1);

Tailwind

colors: {
  custom: {
    50: '#8286dd',
    500: '#3658cd',
    950: '#000000',
  },
}

SCSS

$custom: #3658cd;
$custom-light: #8286dd;
$custom-dark: #000000;

JSON

{
  "hex": "#3658cd",
  "rgb": {
    "r": 54,
    "g": 88,
    "b": 205
  },
  "hsl": {
    "h": 226.49,
    "s": 60.159,
    "l": 50.784
  },
  "oklch": {
    "l": 0.5062,
    "c": 0.18535,
    "h": 267.1
  },
  "luminance": 0.12171
}

Semantic roles & 50–950 ramp

primary

#3658CD

secondary

#D1C28E

accent

#C044E3

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3658CD

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

Preview Lab → · Contrast checker → · Palette generator →