#365BBB#365BBB

#365BBB is a mid, vivid blue. Relative luminance 0.119; OKLCH L 49.8% C 0.157 H 265.2°. Best body text is #FFFFFF at 6.23:1 contrast (WCAG AA passes).

Color values

HEX	#365BBB
RGB	rgb(54, 91, 187)
HSL	hsl(223, 55%, 47%)
HSV	hsv(223, 71%, 73%)
CMYK	cmyk(71.1%, 51.3%, 0%, 26.7%)
CIE-LAB	lab(40.98, 19.88, -54.54)
CIE-LCH	lch(40.98, 58.05, 290.03°)
OKLab	oklab(49.83% -0.0131 -0.1567)
OKLCH	oklch(49.83% 0.157 265.2)
XYZ	xyz(14.2289, 11.8528, 48.5420)
Luminance	0.1185 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#365BBB #BB9636

analogous

#369EBB #365BBB #5336BB

triadic

#365BBB #BB365B #5BBB36

tetradic

#365BBB #BB369E #BB9636 #36BB53

square

#365BBB #BB369E #BB9636 #36BB53

split-complementary

#365BBB #BB5336 #9EBB36

monochromatic

#1B2D5C #28448C #365BBB #5E7ED0 #8DA4DE

Accessibility & contrast

On white

6.23

#365BBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.37

#365BBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #365BBB

6.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##365BBB	#FFFFFF	#000000	##FFFFFF
##365BBB	1.00	6.23	3.37	6.23
#FFFFFF	6.23	1.00	21.00	1.00
#000000	3.37	21.00	1.00	21.00
##FFFFFF	6.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F67BE

Deuteranopia (green-blind)

#005BB9

Tritanopia (blue-blind)

#007282

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #365bbb;
/* rgb */ color: rgb(54, 91, 187);
/* oklch */ color: oklch(49.8% 0.157 265.2);

Tailwind

colors: {
  custom: {
    50: '#7e88d0',
    500: '#365bbb',
    950: '#000000',
  },
}

SCSS

$custom: #365bbb;
$custom-light: #7e88d0;
$custom-dark: #000000;

JSON

{
  "hex": "#365bbb",
  "rgb": {
    "r": 54,
    "g": 91,
    "b": 187
  },
  "hsl": {
    "h": 223.308,
    "s": 55.187,
    "l": 47.255
  },
  "oklch": {
    "l": 0.49829,
    "c": 0.15728,
    "h": 265.2
  },
  "luminance": 0.11854
}

Semantic roles & 50–950 ramp

primary

#365BBB

secondary

#C9B684

accent

#B549DF

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #365BBB

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

Preview Lab → · Contrast checker → · Palette generator →