#437BE1#437BE1

#437BE1 is a mid, vivid blue. Relative luminance 0.208; OKLCH L 59.7% C 0.166 H 261.3°. Best body text is #000000 at 5.16:1 contrast (WCAG AA passes).

Color values

HEX#437BE1
RGBrgb(67, 123, 225)
HSLhsl(219, 72%, 57%)
HSVhsv(219, 70%, 88%)
CMYKcmyk(70.2%, 45.3%, 0%, 11.8%)
CIE-LABlab(52.72, 15.29, -57.37)
CIE-LCHlch(52.72, 59.37, 284.92°)
OKLaboklab(59.74% -0.0253 -0.1643)
OKLCHoklch(59.74% 0.166 261.3)
XYZxyz(22.9834, 20.7930, 74.0218)
Luminance0.2079 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#437BE1 #E1A943
analogous
#43CAE1 #437BE1 #5A43E1
triadic
#437BE1 #E1437B #7BE143
tetradic
#437BE1 #E143CA #E1A943 #43E15A
square
#437BE1 #E143CA #E1A943 #43E15A
split-complementary
#437BE1 #E15A43 #CAE143
monochromatic
#174392 #205BC7 #437BE1 #78A0E9 #ADC5F2

Accessibility & contrast

On white

4.07
#437BE1 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.16
#437BE1 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437BE1
5.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##437BE1#FFFFFF#000000##000000
##437BE11.004.075.165.16
#FFFFFF4.071.0021.0021.00
#0000005.1621.001.001.00
##0000005.1621.001.001.00

Color blindness preview

Protanopia (red-blind)
#4786E5
Deuteranopia (green-blind)
#2677DF
Tritanopia (blue-blind)
#0093A3
Achromatopsia (no color)
#7E7E7E

Design tokens & code

CSS
--color: #437be1;
/* rgb */ color: rgb(67, 123, 225);
/* oklch */ color: oklch(59.7% 0.166 261.3);
Tailwind
colors: {
  custom: {
    50: '#89a0eb',
    500: '#437be1',
    950: '#000000',
  },
}
SCSS
$custom: #437be1;
$custom-light: #89a0eb;
$custom-dark: #000000;
JSON
{
  "hex": "#437be1",
  "rgb": {
    "r": 67,
    "g": 123,
    "b": 225
  },
  "hsl": {
    "h": 218.734,
    "s": 72.477,
    "l": 57.255
  },
  "oklch": {
    "l": 0.59738,
    "c": 0.16625,
    "h": 261.3
  },
  "luminance": 0.20795
}

Semantic roles & 50–950 ramp

primary
#437BE1
secondary
#E0C9A0
accent
#AE39EF
background
#F9F9FE
surface
#F1F2FD
border
#CBCCD5
text
#0D0E16
muted
#7E7E84

Preview Lab

Preview with #437BE1

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

Preview Lab → · Contrast checker → · Palette generator →

#437BE1 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva