#437CCE#437CCE

#437CCE is a mid, vivid blue. Relative luminance 0.201; OKLCH L 58.8% C 0.140 H 257.7°. Best body text is #000000 at 5.01:1 contrast (WCAG AA passes).

Color values

HEX	#437CCE
RGB	rgb(67, 124, 206)
HSL	hsl(215, 59%, 54%)
HSV	hsv(215, 67%, 81%)
CMYK	cmyk(67.5%, 39.8%, 0%, 19.2%)
CIE-LAB	lab(51.91, 7.92, -47.94)
CIE-LCH	lch(51.91, 48.59, 279.38°)
OKLab	oklab(58.76% -0.0298 -0.1366)
OKLCH	oklch(58.76% 0.14 257.7)
XYZ	xyz(20.6589, 20.0627, 61.1643)
Luminance	0.2006 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437CCE #CE9543

analogous

#43C1CE #437CCE #4F43CE

triadic

#437CCE #CE437C #7CCE43

tetradic

#437CCE #CE43C1 #CE9543 #43CE4F

square

#437CCE #CE43C1 #CE9543 #43CE4F

split-complementary

#437CCE #CE4F43 #C1CE43

monochromatic

#1F4377 #2C5FA8 #437CCE #749EDB #A4C0E7

Accessibility & contrast

On white

4.19

#437CCE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.01

#437CCE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437CCE

5.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437CCE	#FFFFFF	#000000	##000000
##437CCE	1.00	4.19	5.01	5.01
#FFFFFF	4.19	1.00	21.00	21.00
#000000	5.01	21.00	1.00	1.00
##000000	5.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5783D1

Deuteranopia (green-blind)

#4176CC

Tritanopia (blue-blind)

#008F9B

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #437cce;
/* rgb */ color: rgb(67, 124, 206);
/* oklch */ color: oklch(58.8% 0.140 257.7);

Tailwind

colors: {
  custom: {
    50: '#86a1dd',
    500: '#437cce',
    950: '#000000',
  },
}

SCSS

$custom: #437cce;
$custom-light: #86a1dd;
$custom-dark: #000000;

JSON

{
  "hex": "#437cce",
  "rgb": {
    "r": 67,
    "g": 124,
    "b": 206
  },
  "hsl": {
    "h": 215.396,
    "s": 58.65,
    "l": 53.529
  },
  "oklch": {
    "l": 0.58755,
    "c": 0.13981,
    "h": 257.7
  },
  "luminance": 0.20065
}

Semantic roles & 50–950 ramp

primary

#437CCE

secondary

#D4BC99

accent

#A246E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #437CCE

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

Preview Lab → · Contrast checker → · Palette generator →