#3658BA#3658BA

#3658BA is a mid, vivid blue. Relative luminance 0.113; OKLCH L 49.1% C 0.160 H 266.2°. Best body text is #FFFFFF at 6.44:1 contrast (WCAG AA passes).

Color values

HEX	#3658BA
RGB	rgb(54, 88, 186)
HSL	hsl(225, 55%, 47%)
HSV	hsv(225, 71%, 73%)
CMYK	cmyk(71%, 52.7%, 0%, 27.1%)
CIE-LAB	lab(40.09, 21.46, -55.39)
CIE-LCH	lch(40.09, 59.40, 291.18°)
OKLab	oklab(49.13% -0.0106 -0.1593)
OKLCH	oklch(49.13% 0.16 266.2)
XYZ	xyz(13.8709, 11.3075, 47.8964)
Luminance	0.1131 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3658BA #BA9836

analogous

#369ABA #3658BA #5636BA

triadic

#3658BA #BA3658 #58BA36

tetradic

#3658BA #BA369A #BA9836 #36BA56

square

#3658BA #BA369A #BA9836 #36BA56

split-complementary

#3658BA #BA5636 #9ABA36

monochromatic

#1A2B5B #28428B #3658BA #5D7BD0 #8DA2DE

Accessibility & contrast

On white

6.44

#3658BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#3658BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3658BA

6.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3658BA	#FFFFFF	#000000	##FFFFFF
##3658BA	1.00	6.44	3.26	6.44
#FFFFFF	6.44	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1565BD

Deuteranopia (green-blind)

#0059B8

Tritanopia (blue-blind)

#006F80

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3658ba;
/* rgb */ color: rgb(54, 88, 186);
/* oklch */ color: oklch(49.1% 0.160 266.2);

Tailwind

colors: {
  custom: {
    50: '#7e86cf',
    500: '#3658ba',
    950: '#000000',
  },
}

SCSS

$custom: #3658ba;
$custom-light: #7e86cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3658ba",
  "rgb": {
    "r": 54,
    "g": 88,
    "b": 186
  },
  "hsl": {
    "h": 224.545,
    "s": 55,
    "l": 47.059
  },
  "oklch": {
    "l": 0.49133,
    "c": 0.15964,
    "h": 266.2
  },
  "luminance": 0.11309
}

Semantic roles & 50–950 ramp

primary

#3658BA

secondary

#C8B784

accent

#B849DE

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #3658BA

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

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