#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
RGB	rgb(67, 126, 213)
HSL	hsl(216, 63%, 55%)
HSV	hsv(216, 69%, 84%)
CMYK	cmyk(68.5%, 40.8%, 0%, 16.5%)
CIE-LAB	lab(52.86, 9.17, -50.39)
CIE-LCH	lch(52.86, 51.22, 280.32°)
OKLab	oklab(59.62% -0.0302 -0.1438)
OKLCH	oklch(59.62% 0.147 258.1)
XYZ	xyz(21.7815, 20.9168, 65.8273)
Luminance	0.2092 (WCAG relative)
Temperature	cool
Family	blue

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
##437ED5	1.00	4.05	5.18	5.18
#FFFFFF	4.05	1.00	21.00	21.00
#000000	5.18	21.00	1.00	1.00
##000000	5.18	21.00	1.00	1.00

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 →