#437DD5#437DD5

#437DD5 is a mid, vivid blue. Relative luminance 0.207; OKLCH L 59.4% C 0.148 H 258.6°. Best body text is #000000 at 5.13:1 contrast (WCAG AA passes).

Color values

HEX	#437DD5
RGB	rgb(67, 125, 213)
HSL	hsl(216, 63%, 55%)
HSV	hsv(216, 69%, 84%)
CMYK	cmyk(68.5%, 41.3%, 0%, 16.5%)
CIE-LAB	lab(52.58, 9.78, -50.84)
CIE-LCH	lch(52.58, 51.77, 280.89°)
OKLab	oklab(59.4% -0.0293 -0.1451)
OKLCH	oklch(59.4% 0.148 258.6)
XYZ	xyz(21.6543, 20.6624, 65.7849)
Luminance	0.2067 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437DD5 #D59B43

analogous

#43C6D5 #437DD5 #5243D5

triadic

#437DD5 #D5437D #7DD543

tetradic

#437DD5 #D543C6 #D59B43 #43D552

square

#437DD5 #D543C6 #D59B43 #43D552

split-complementary

#437DD5 #D55243 #C6D543

monochromatic

#1D4581 #285FB3 #437DD5 #75A0E0 #A7C2EB

Accessibility & contrast

On white

4.09

#437DD5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.13

#437DD5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437DD5

5.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437DD5	#FFFFFF	#000000	##000000
##437DD5	1.00	4.09	5.13	5.13
#FFFFFF	4.09	1.00	21.00	21.00
#000000	5.13	21.00	1.00	1.00
##000000	5.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5485D8

Deuteranopia (green-blind)

#3C77D3

Tritanopia (blue-blind)

#00919E

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #437dd5;
/* rgb */ color: rgb(67, 125, 213);
/* oklch */ color: oklch(59.4% 0.148 258.6);

Tailwind

colors: {
  custom: {
    50: '#87a2e2',
    500: '#437dd5',
    950: '#000000',
  },
}

SCSS

$custom: #437dd5;
$custom-light: #87a2e2;
$custom-dark: #000000;

JSON

{
  "hex": "#437dd5",
  "rgb": {
    "r": 67,
    "g": 125,
    "b": 213
  },
  "hsl": {
    "h": 216.164,
    "s": 63.478,
    "l": 54.902
  },
  "oklch": {
    "l": 0.59401,
    "c": 0.14802,
    "h": 258.6
  },
  "luminance": 0.20665
}

Semantic roles & 50–950 ramp

primary

#437DD5

secondary

#D9C09B

accent

#A541E7

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0D0F15

muted

#7D7E83

Preview Lab

Preview with #437DD5

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

Preview Lab → · Contrast checker → · Palette generator →