#437DD8#437DD8

#437DD8 is a mid, vivid blue. Relative luminance 0.208; OKLCH L 59.6% C 0.152 H 259.1°. Best body text is #000000 at 5.16:1 contrast (WCAG AA passes).

Color values

HEX	#437DD8
RGB	rgb(67, 125, 216)
HSL	hsl(217, 66%, 55%)
HSV	hsv(217, 69%, 85%)
CMYK	cmyk(69%, 42.1%, 0%, 15.3%)
CIE-LAB	lab(52.75, 10.85, -52.26)
CIE-LCH	lch(52.75, 53.38, 281.73°)
OKLab	oklab(59.59% -0.0287 -0.1493)
OKLCH	oklch(59.59% 0.152 259.1)
XYZ	xyz(22.0386, 20.8161, 67.8089)
Luminance	0.2082 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437DD8 #D89E43

analogous

#43C8D8 #437DD8 #5343D8

triadic

#437DD8 #D8437D #7DD843

tetradic

#437DD8 #D843C8 #D89E43 #43D853

square

#437DD8 #D843C8 #D89E43 #43D853

split-complementary

#437DD8 #D85343 #C8D843

monochromatic

#1C4585 #265FB8 #437DD8 #76A0E3 #A8C3ED

Accessibility & contrast

On white

4.07

#437DD8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.16

#437DD8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437DD8

5.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437DD8	#FFFFFF	#000000	##000000
##437DD8	1.00	4.07	5.16	5.16
#FFFFFF	4.07	1.00	21.00	21.00
#000000	5.16	21.00	1.00	1.00
##000000	5.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5285DC

Deuteranopia (green-blind)

#3978D6

Tritanopia (blue-blind)

#0092A0

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #437dd8;
/* rgb */ color: rgb(67, 125, 216);
/* oklch */ color: oklch(59.6% 0.152 259.1);

Tailwind

colors: {
  custom: {
    50: '#87a2e4',
    500: '#437dd8',
    950: '#000000',
  },
}

SCSS

$custom: #437dd8;
$custom-light: #87a2e4;
$custom-dark: #000000;

JSON

{
  "hex": "#437dd8",
  "rgb": {
    "r": 67,
    "g": 125,
    "b": 216
  },
  "hsl": {
    "h": 216.644,
    "s": 65.639,
    "l": 55.49
  },
  "oklch": {
    "l": 0.59587,
    "c": 0.15201,
    "h": 259.1
  },
  "luminance": 0.20818
}

Semantic roles & 50–950 ramp

primary

#437DD8

secondary

#DAC29C

accent

#A73FE9

background

#F9F9FE

surface

#F1F2FC

border

#CBCCD5

text

#0D0F16

muted

#7E7E84

Preview Lab

Preview with #437DD8

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

Preview Lab → · Contrast checker → · Palette generator →