#3658CA#3658CA

#3658CA is a mid, vivid blue. Relative luminance 0.120; OKLCH L 50.4% C 0.181 H 267.0°. Best body text is #FFFFFF at 6.17:1 contrast (WCAG AA passes).

Color values

HEX	#3658CA
RGB	rgb(54, 88, 202)
HSL	hsl(226, 58%, 50%)
HSV	hsv(226, 73%, 79%)
CMYK	cmyk(73.3%, 56.4%, 0%, 20.8%)
CIE-LAB	lab(41.26, 27.35, -62.81)
CIE-LCH	lch(41.26, 68.51, 293.53°)
OKLab	oklab(50.38% -0.0095 -0.1811)
OKLCH	oklch(50.38% 0.181 267)
XYZ	xyz(15.6680, 12.0263, 57.3612)
Luminance	0.1203 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3658CA #CAA836

analogous

#36A2CA #3658CA #5E36CA

triadic

#3658CA #CA3658 #58CA36

tetradic

#3658CA #CA36A2 #CAA836 #36CA5E

square

#3658CA #CA36A2 #CAA836 #36CA5E

split-complementary

#3658CA #CA5E36 #A2CA36

monochromatic

#1C2E6A #29439A #3658CA #6680D7 #97A8E4

Accessibility & contrast

On white

6.17

#3658CA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#3658CA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3658CA

6.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3658CA	#FFFFFF	#000000	##FFFFFF
##3658CA	1.00	6.17	3.41	6.17
#FFFFFF	6.17	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068CE

Deuteranopia (green-blind)

#005BC8

Tritanopia (blue-blind)

#007488

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #3658ca;
/* rgb */ color: rgb(54, 88, 202);
/* oklch */ color: oklch(50.4% 0.181 267.0);

Tailwind

colors: {
  custom: {
    50: '#8186db',
    500: '#3658ca',
    950: '#000000',
  },
}

SCSS

$custom: #3658ca;
$custom-light: #8186db;
$custom-dark: #000000;

JSON

{
  "hex": "#3658ca",
  "rgb": {
    "r": 54,
    "g": 88,
    "b": 202
  },
  "hsl": {
    "h": 226.216,
    "s": 58.268,
    "l": 50.196
  },
  "oklch": {
    "l": 0.50379,
    "c": 0.18136,
    "h": 267
  },
  "luminance": 0.12028
}

Semantic roles & 50–950 ramp

primary

#3658CA

secondary

#CFC08D

accent

#BE46E1

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3658CA

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

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