#437ED5#437ED5

#437ED5 is a mid, vivid blue. Relative luminance 0.209; OKLCH L 59.6% C 0.147 H 258.1°. Best body text is #000000 at 5.18:1 contrast (WCAG AA passes).

Color values

HEX#437ED5
RGBrgb(67, 126, 213)
HSLhsl(216, 63%, 55%)
HSVhsv(216, 69%, 84%)
CMYKcmyk(68.5%, 40.8%, 0%, 16.5%)
CIE-LABlab(52.86, 9.17, -50.39)
CIE-LCHlch(52.86, 51.22, 280.32°)
OKLaboklab(59.62% -0.0302 -0.1438)
OKLCHoklch(59.62% 0.147 258.1)
XYZxyz(21.7815, 20.9168, 65.8273)
Luminance0.2092 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#437ED5 #D59A43
analogous
#43C7D5 #437ED5 #5143D5
triadic
#437ED5 #D5437E #7ED543
tetradic
#437ED5 #D543C7 #D59A43 #43D551
square
#437ED5 #D543C7 #D59A43 #43D551
split-complementary
#437ED5 #D55143 #C7D543
monochromatic
#1D4581 #2860B3 #437ED5 #75A0E0 #A7C3EB

Accessibility & contrast

On white

4.05
#437ED5 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.18
#437ED5 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437ED5
5.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##437ED5#FFFFFF#000000##000000
##437ED51.004.055.185.18
#FFFFFF4.051.0021.0021.00
#0000005.1821.001.001.00
##0000005.1821.001.001.00

Color blindness preview

Protanopia (red-blind)
#5586D8
Deuteranopia (green-blind)
#3E78D3
Tritanopia (blue-blind)
#00929F
Achromatopsia (no color)
#7E7E7E

Design tokens & code

CSS
--color: #437ed5;
/* rgb */ color: rgb(67, 126, 213);
/* oklch */ color: oklch(59.6% 0.147 258.1);
Tailwind
colors: {
  custom: {
    50: '#87a2e2',
    500: '#437ed5',
    950: '#000000',
  },
}
SCSS
$custom: #437ed5;
$custom-light: #87a2e2;
$custom-dark: #000000;
JSON
{
  "hex": "#437ed5",
  "rgb": {
    "r": 67,
    "g": 126,
    "b": 213
  },
  "hsl": {
    "h": 215.753,
    "s": 63.478,
    "l": 54.902
  },
  "oklch": {
    "l": 0.59618,
    "c": 0.14691,
    "h": 258.1
  },
  "luminance": 0.20919
}

Semantic roles & 50–950 ramp

primary
#437ED5
secondary
#D9C09B
accent
#A441E7
background
#F8F9FD
surface
#F0F2FB
border
#CBCCD4
text
#0D0F15
muted
#7D7E83

Preview Lab

Preview with #437ED5

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

Preview Lab → · Contrast checker → · Palette generator →

#437ED5 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva