#356ECB#356ECB

#356ECB is a mid, vivid blue. Relative luminance 0.162; OKLCH L 55.0% C 0.156 H 259.7°. Best body text is #FFFFFF at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#356ECB
RGB	rgb(53, 110, 203)
HSL	hsl(217, 59%, 50%)
HSV	hsv(217, 74%, 80%)
CMYK	cmyk(73.9%, 45.8%, 0%, 20.4%)
CIE-LAB	lab(47.26, 13.50, -53.69)
CIE-LCH	lch(47.26, 55.36, 284.11°)
OKLab	oklab(54.96% -0.0278 -0.1539)
OKLCH	oklch(54.96% 0.156 259.7)
XYZ	xyz(17.8197, 16.2186, 58.6797)
Luminance	0.1622 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#356ECB #CB9235

analogous

#35B9CB #356ECB #4735CB

triadic

#356ECB #CB356E #6ECB35

tetradic

#356ECB #CB35B9 #CB9235 #35CB47

square

#356ECB #CB35B9 #CB9235 #35CB47

split-complementary

#356ECB #CB4735 #B9CB35

monochromatic

#1B396A #28549B #356ECB #6691D8 #96B4E4

Accessibility & contrast

On white

4.95

#356ECB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.24

#356ECB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #356ECB

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##356ECB	#FFFFFF	#000000	##FFFFFF
##356ECB	1.00	4.95	4.24	4.95
#FFFFFF	4.95	1.00	21.00	1.00
#000000	4.24	21.00	1.00	21.00
##FFFFFF	4.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D77CF

Deuteranopia (green-blind)

#1B6AC9

Tritanopia (blue-blind)

#008492

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #356ecb;
/* rgb */ color: rgb(53, 110, 203);
/* oklch */ color: oklch(55.0% 0.156 259.7);

Tailwind

colors: {
  custom: {
    50: '#8097db',
    500: '#356ecb',
    950: '#000000',
  },
}

SCSS

$custom: #356ecb;
$custom-light: #8097db;
$custom-dark: #000000;

JSON

{
  "hex": "#356ecb",
  "rgb": {
    "r": 53,
    "g": 110,
    "b": 203
  },
  "hsl": {
    "h": 217.2,
    "s": 59.055,
    "l": 50.196
  },
  "oklch": {
    "l": 0.54957,
    "c": 0.15642,
    "h": 259.7
  },
  "luminance": 0.16221
}

Semantic roles & 50–950 ramp

primary

#356ECB

secondary

#CFB68C

accent

#A746E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #356ECB

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

Preview Lab → · Contrast checker → · Palette generator →