#356EB3#356EB3

#356EB3 is a mid, vivid cyan. Relative luminance 0.152; OKLCH L 53.4% C 0.124 H 254.7°. Best body text is #FFFFFF at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#356EB3
RGB	rgb(53, 110, 179)
HSL	hsl(213, 54%, 45%)
HSV	hsv(213, 70%, 70%)
CMYK	cmyk(70.4%, 38.5%, 0%, 29.8%)
CIE-LAB	lab(45.85, 4.65, -42.07)
CIE-LCH	lch(45.85, 42.33, 276.31°)
OKLab	oklab(53.41% -0.0328 -0.1198)
OKLCH	oklch(53.41% 0.124 254.7)
XYZ	xyz(15.1778, 15.1618, 44.7657)
Luminance	0.1516 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#356EB3 #B37A35

analogous

#35ADB3 #356EB3 #3B35B3

triadic

#356EB3 #B3356E #6EB335

tetradic

#356EB3 #B335AD #B37A35 #35B33B

square

#356EB3 #B335AD #B37A35 #35B33B

split-complementary

#356EB3 #B33B35 #ADB335

monochromatic

#193455 #275184 #356EB3 #588DCD #87ADDB

Accessibility & contrast

On white

5.21

#356EB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.03

#356EB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #356EB3

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##356EB3	#FFFFFF	#000000	##FFFFFF
##356EB3	1.00	5.21	4.03	5.21
#FFFFFF	5.21	1.00	21.00	1.00
#000000	4.03	21.00	1.00	21.00
##FFFFFF	5.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F73B6

Deuteranopia (green-blind)

#3C67B2

Tritanopia (blue-blind)

#007E88

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #356eb3;
/* rgb */ color: rgb(53, 110, 179);
/* oklch */ color: oklch(53.4% 0.124 254.7);

Tailwind

colors: {
  custom: {
    50: '#7b97ca',
    500: '#356eb3',
    950: '#000000',
  },
}

SCSS

$custom: #356eb3;
$custom-light: #7b97ca;
$custom-dark: #000000;

JSON

{
  "hex": "#356eb3",
  "rgb": {
    "r": 53,
    "g": 110,
    "b": 179
  },
  "hsl": {
    "h": 212.857,
    "s": 54.31,
    "l": 45.49
  },
  "oklch": {
    "l": 0.53413,
    "c": 0.1242,
    "h": 254.7
  },
  "luminance": 0.15163
}

Semantic roles & 50–950 ramp

primary

#356EB3

secondary

#C5A57F

accent

#9B4ADE

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #356EB3

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

Preview Lab → · Contrast checker → · Palette generator →