#437EE1#437EE1

#437EE1 is a mid, vivid blue. Relative luminance 0.216; OKLCH L 60.4% C 0.163 H 260.1°. Best body text is #000000 at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#437EE1
RGB	rgb(67, 126, 225)
HSL	hsl(218, 72%, 57%)
HSV	hsv(218, 70%, 88%)
CMYK	cmyk(70.2%, 44%, 0%, 11.8%)
CIE-LAB	lab(53.55, 13.44, -56.05)
CIE-LCH	lch(53.55, 57.64, 283.48°)
OKLab	oklab(60.37% -0.0279 -0.1604)
OKLCH	oklch(60.37% 0.163 260.1)
XYZ	xyz(23.3613, 21.5488, 74.1477)
Luminance	0.2155 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437EE1 #E1A643

analogous

#43CDE1 #437EE1 #5743E1

triadic

#437EE1 #E1437E #7EE143

tetradic

#437EE1 #E143CD #E1A643 #43E157

square

#437EE1 #E143CD #E1A643 #43E157

split-complementary

#437EE1 #E15743 #CDE143

monochromatic

#174592 #205EC7 #437EE1 #78A2E9 #ADC6F2

Accessibility & contrast

On white

3.95

#437EE1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.31

#437EE1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437EE1

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437EE1	#FFFFFF	#000000	##000000
##437EE1	1.00	3.95	5.31	5.31
#FFFFFF	3.95	1.00	21.00	21.00
#000000	5.31	21.00	1.00	1.00
##000000	5.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D88E5

Deuteranopia (green-blind)

#2F79DF

Tritanopia (blue-blind)

#0095A4

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #437ee1;
/* rgb */ color: rgb(67, 126, 225);
/* oklch */ color: oklch(60.4% 0.163 260.1);

Tailwind

colors: {
  custom: {
    50: '#89a2eb',
    500: '#437ee1',
    950: '#000000',
  },
}

SCSS

$custom: #437ee1;
$custom-light: #89a2eb;
$custom-dark: #000000;

JSON

{
  "hex": "#437ee1",
  "rgb": {
    "r": 67,
    "g": 126,
    "b": 225
  },
  "hsl": {
    "h": 217.595,
    "s": 72.477,
    "l": 57.255
  },
  "oklch": {
    "l": 0.60372,
    "c": 0.1628,
    "h": 260.1
  },
  "luminance": 0.21551
}

Semantic roles & 50–950 ramp

primary

#437EE1

secondary

#E0C8A0

accent

#AB39EF

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0F16

muted

#7E7E84

Preview Lab

Preview with #437EE1

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

Preview Lab → · Contrast checker → · Palette generator →