#365BD9#365BD9

#365BD9 is a mid, vivid blue. Relative luminance 0.133; OKLCH L 52.2% C 0.198 H 266.8°. Best body text is #FFFFFF at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#365BD9
RGB	rgb(54, 91, 217)
HSL	hsl(226, 68%, 53%)
HSV	hsv(226, 75%, 85%)
CMYK	cmyk(75.1%, 58.1%, 0%, 14.9%)
CIE-LAB	lab(43.17, 30.91, -68.31)
CIE-LCH	lch(43.17, 74.98, 294.35°)
OKLab	oklab(52.17% -0.0111 -0.1972)
OKLCH	oklch(52.17% 0.198 266.8)
XYZ	xyz(17.7824, 13.2742, 67.2572)
Luminance	0.1328 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#365BD9 #D9B436

analogous

#36ADD9 #365BD9 #6236D9

triadic

#365BD9 #D9365B #5BD936

tetradic

#365BD9 #D936AD #D9B436 #36D962

square

#365BD9 #D936AD #D9B436 #36D962

split-complementary

#365BD9 #D96236 #ADD936

monochromatic

#182F7D #2142B0 #365BD9 #6985E3 #9DAFEC

Accessibility & contrast

On white

5.75

#365BD9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.66

#365BD9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #365BD9

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##365BD9	#FFFFFF	#000000	##FFFFFF
##365BD9	1.00	5.75	3.66	5.75
#FFFFFF	5.75	1.00	21.00	1.00
#000000	3.66	21.00	1.00	21.00
##FFFFFF	5.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006EDD

Deuteranopia (green-blind)

#005FD7

Tritanopia (blue-blind)

#007B91

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #365bd9;
/* rgb */ color: rgb(54, 91, 217);
/* oklch */ color: oklch(52.2% 0.198 266.8);

Tailwind

colors: {
  custom: {
    50: '#8489e6',
    500: '#365bd9',
    950: '#000000',
  },
}

SCSS

$custom: #365bd9;
$custom-light: #8489e6;
$custom-dark: #000000;

JSON

{
  "hex": "#365bd9",
  "rgb": {
    "r": 54,
    "g": 91,
    "b": 217
  },
  "hsl": {
    "h": 226.38,
    "s": 68.201,
    "l": 53.137
  },
  "oklch": {
    "l": 0.52172,
    "c": 0.19753,
    "h": 266.8
  },
  "luminance": 0.13276
}

Semantic roles & 50–950 ramp

primary

#365BD9

secondary

#D9C992

accent

#C33DEB

background

#F8F8FE

surface

#F0EFFC

border

#CBCAD5

text

#0D0B16

muted

#7D7C84

Preview Lab

Preview with #365BD9

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

Preview Lab → · Contrast checker → · Palette generator →