#356E8B#356E8B

#356E8B is a mid, moderate cyan. Relative luminance 0.138; OKLCH L 51.2% C 0.075 H 233.0°. Best body text is #FFFFFF at 5.59:1 contrast (WCAG AA passes).

Color values

HEX#356E8B
RGBrgb(53, 110, 139)
HSLhsl(200, 45%, 38%)
HSVhsv(200, 62%, 55%)
CMYKcmyk(61.9%, 20.9%, 0%, 45.5%)
CIE-LABlab(43.90, -9.46, -21.53)
CIE-LCHlch(43.90, 23.52, 246.27°)
OKLaboklab(51.24% -0.0453 -0.0602)
OKLCHoklch(51.24% 0.075 233)
XYZxyz(11.7025, 13.7717, 26.4626)
Luminance0.1377 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#356E8B #8B5235
analogous
#358B7D #356E8B #35438B
triadic
#356E8B #8B356E #6E8B35
tetradic
#356E8B #7D358B #8B5235 #438B35
square
#356E8B #7D358B #8B5235 #438B35
split-complementary
#356E8B #8B3543 #8B7D35
monochromatic
#132832 #244B5F #356E8B #4691B7 #71ABC9

Accessibility & contrast

On white

5.59
#356E8B on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.75
#356E8B on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #356E8B
5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##356E8B#FFFFFF#000000##FFFFFF
##356E8B1.005.593.755.59
#FFFFFF5.591.0021.001.00
#0000003.7521.001.0021.00
##FFFFFF5.591.0021.001.00

Color blindness preview

Protanopia (red-blind)
#606D8C
Deuteranopia (green-blind)
#54648B
Tritanopia (blue-blind)
#007678
Achromatopsia (no color)
#686868

Design tokens & code

CSS
--color: #356e8b;
/* rgb */ color: rgb(53, 110, 139);
/* oklch */ color: oklch(51.2% 0.075 233.0);
Tailwind
colors: {
  custom: {
    50: '#7597ad',
    500: '#356e8b',
    950: '#000000',
  },
}
SCSS
$custom: #356e8b;
$custom-light: #7597ad;
$custom-dark: #000000;
JSON
{
  "hex": "#356e8b",
  "rgb": {
    "r": 53,
    "g": 110,
    "b": 139
  },
  "hsl": {
    "h": 200.233,
    "s": 44.792,
    "l": 37.647
  },
  "oklch": {
    "l": 0.51237,
    "c": 0.0753,
    "h": 233
  },
  "luminance": 0.13773
}

Semantic roles & 50–950 ramp

primary
#356E8B
secondary
#B1826A
accent
#7F53D4
background
#F7F9FA
surface
#EDF2F4
border
#C8CCCE
text
#090D10
muted
#7B7E7F

Preview Lab

Preview with #356E8B

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

Preview Lab → · Contrast checker → · Palette generator →

#356E8B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva