#437DDE#437DDE

#437DDE is a mid, vivid blue. Relative luminance 0.211; OKLCH L 60.0% C 0.160 H 260.1°. Best body text is #000000 at 5.23:1 contrast (WCAG AA passes).

Color values

HEX	#437DDE
RGB	rgb(67, 125, 222)
HSL	hsl(218, 70%, 57%)
HSV	hsv(218, 70%, 87%)
CMYK	cmyk(69.8%, 43.7%, 0%, 12.9%)
CIE-LAB	lab(53.09, 12.98, -55.09)
CIE-LCH	lch(53.09, 56.60, 283.26°)
OKLab	oklab(59.97% -0.0276 -0.1576)
OKLCH	oklch(59.97% 0.16 260.1)
XYZ	xyz(22.8284, 21.1321, 71.9689)
Luminance	0.2113 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437DDE #DEA443

analogous

#43CBDE #437DDE #5743DE

triadic

#437DDE #DE437D #7DDE43

tetradic

#437DDE #DE43CB #DEA443 #43DE57

square

#437DDE #DE43CB #DEA443 #43DE57

split-complementary

#437DDE #DE5743 #CBDE43

monochromatic

#19458E #225EC2 #437DDE #77A1E7 #ABC5F0

Accessibility & contrast

On white

4.02

#437DDE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.23

#437DDE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437DDE

5.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437DDE	#FFFFFF	#000000	##000000
##437DDE	1.00	4.02	5.23	5.23
#FFFFFF	4.02	1.00	21.00	21.00
#000000	5.23	21.00	1.00	1.00
##000000	5.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D86E2

Deuteranopia (green-blind)

#3178DC

Tritanopia (blue-blind)

#0094A3

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #437dde;
/* rgb */ color: rgb(67, 125, 222);
/* oklch */ color: oklch(60.0% 0.160 260.1);

Tailwind

colors: {
  custom: {
    50: '#89a2e9',
    500: '#437dde',
    950: '#000000',
  },
}

SCSS

$custom: #437dde;
$custom-light: #89a2e9;
$custom-dark: #000000;

JSON

{
  "hex": "#437dde",
  "rgb": {
    "r": 67,
    "g": 125,
    "b": 222
  },
  "hsl": {
    "h": 217.548,
    "s": 70.136,
    "l": 56.667
  },
  "oklch": {
    "l": 0.59967,
    "c": 0.15997,
    "h": 260.1
  },
  "luminance": 0.21134
}

Semantic roles & 50–950 ramp

primary

#437DDE

secondary

#DEC69F

accent

#AA3BED

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0F16

muted

#7E7E84

Preview Lab

Preview with #437DDE

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

Preview Lab → · Contrast checker → · Palette generator →