#356BCB#356BCB

#356BCB is a mid, vivid blue. Relative luminance 0.156; OKLCH L 54.3% C 0.160 H 260.9°. Best body text is #FFFFFF at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#356BCB
RGB	rgb(53, 107, 203)
HSL	hsl(218, 59%, 50%)
HSV	hsv(218, 74%, 80%)
CMYK	cmyk(73.9%, 47.3%, 0%, 20.4%)
CIE-LAB	lab(46.42, 15.40, -55.04)
CIE-LCH	lch(46.42, 57.15, 285.63°)
OKLab	oklab(54.31% -0.0253 -0.1579)
OKLCH	oklch(54.31% 0.16 260.9)
XYZ	xyz(17.5015, 15.5821, 58.5736)
Luminance	0.1558 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#356BCB #CB9535

analogous

#35B6CB #356BCB #4A35CB

triadic

#356BCB #CB356B #6BCB35

tetradic

#356BCB #CB35B6 #CB9535 #35CB4A

square

#356BCB #CB35B6 #CB9535 #35CB4A

split-complementary

#356BCB #CB4A35 #B6CB35

monochromatic

#1B386A #28519B #356BCB #668FD8 #96B2E4

Accessibility & contrast

On white

5.10

#356BCB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.12

#356BCB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #356BCB

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##356BCB	#FFFFFF	#000000	##FFFFFF
##356BCB	1.00	5.10	4.12	5.10
#FFFFFF	5.10	1.00	21.00	1.00
#000000	4.12	21.00	1.00	21.00
##FFFFFF	5.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3775CF

Deuteranopia (green-blind)

#0B68C9

Tritanopia (blue-blind)

#008291

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #356bcb;
/* rgb */ color: rgb(53, 107, 203);
/* oklch */ color: oklch(54.3% 0.160 260.9);

Tailwind

colors: {
  custom: {
    50: '#8094db',
    500: '#356bcb',
    950: '#000000',
  },
}

SCSS

$custom: #356bcb;
$custom-light: #8094db;
$custom-dark: #000000;

JSON

{
  "hex": "#356bcb",
  "rgb": {
    "r": 53,
    "g": 107,
    "b": 203
  },
  "hsl": {
    "h": 218.4,
    "s": 59.055,
    "l": 50.196
  },
  "oklch": {
    "l": 0.54312,
    "c": 0.15996,
    "h": 260.9
  },
  "luminance": 0.15584
}

Semantic roles & 50–950 ramp

primary

#356BCB

secondary

#CFB78C

accent

#AA46E2

background

#F8F9FD

surface

#F0F1FB

border

#CBCBD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #356BCB

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

Preview Lab → · Contrast checker → · Palette generator →