#3658CE#3658CE

#3658CE is a mid, vivid blue. Relative luminance 0.122; OKLCH L 50.7% C 0.187 H 267.1°. Best body text is #FFFFFF at 6.10:1 contrast (WCAG AA passes).

Color values

HEX	#3658CE
RGB	rgb(54, 88, 206)
HSL	hsl(227, 61%, 51%)
HSV	hsv(227, 74%, 81%)
CMYK	cmyk(73.8%, 57.3%, 0%, 19.2%)
CIE-LAB	lab(41.56, 28.82, -64.62)
CIE-LCH	lch(41.56, 70.76, 294.03°)
OKLab	oklab(50.7% -0.0093 -0.1864)
OKLCH	oklch(50.7% 0.187 267.1)
XYZ	xyz(16.1477, 12.2182, 59.8879)
Luminance	0.1222 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3658CE #CEAC36

analogous

#36A4CE #3658CE #6036CE

triadic

#3658CE #CE3658 #58CE36

tetradic

#3658CE #CE36A4 #CEAC36 #36CE60

square

#3658CE #CE36A4 #CEAC36 #36CE60

split-complementary

#3658CE #CE6036 #A4CE36

monochromatic

#1B2E6F #2742A0 #3658CE #6781DA #98AAE6

Accessibility & contrast

On white

6.10

#3658CE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.44

#3658CE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3658CE

6.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3658CE	#FFFFFF	#000000	##FFFFFF
##3658CE	1.00	6.10	3.44	6.10
#FFFFFF	6.10	1.00	21.00	1.00
#000000	3.44	21.00	1.00	21.00
##FFFFFF	6.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069D2

Deuteranopia (green-blind)

#005BCC

Tritanopia (blue-blind)

#00758A

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #3658ce;
/* rgb */ color: rgb(54, 88, 206);
/* oklch */ color: oklch(50.7% 0.187 267.1);

Tailwind

colors: {
  custom: {
    50: '#8286de',
    500: '#3658ce',
    950: '#000000',
  },
}

SCSS

$custom: #3658ce;
$custom-light: #8286de;
$custom-dark: #000000;

JSON

{
  "hex": "#3658ce",
  "rgb": {
    "r": 54,
    "g": 88,
    "b": 206
  },
  "hsl": {
    "h": 226.579,
    "s": 60.8,
    "l": 50.98
  },
  "oklch": {
    "l": 0.50701,
    "c": 0.18667,
    "h": 267.1
  },
  "luminance": 0.1222
}

Semantic roles & 50–950 ramp

primary

#3658CE

secondary

#D2C38E

accent

#C044E4

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3658CE

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

Preview Lab → · Contrast checker → · Palette generator →