#437EDF#437EDF

#437EDF is a mid, vivid blue. Relative luminance 0.214; OKLCH L 60.2% C 0.160 H 259.8°. Best body text is #000000 at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#437EDF
RGB	rgb(67, 126, 223)
HSL	hsl(217, 71%, 57%)
HSV	hsv(217, 70%, 87%)
CMYK	cmyk(70%, 43.5%, 0%, 12.5%)
CIE-LAB	lab(53.43, 12.73, -55.12)
CIE-LCH	lch(53.43, 56.57, 283.00°)
OKLab	oklab(60.24% -0.0283 -0.1576)
OKLCH	oklch(60.24% 0.16 259.8)
XYZ	xyz(23.0901, 21.4403, 72.7192)
Luminance	0.2144 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437EDF #DFA443

analogous

#43CCDF #437EDF #5643DF

triadic

#437EDF #DF437E #7EDF43

tetradic

#437EDF #DF43CC #DFA443 #43DF56

square

#437EDF #DF43CC #DFA443 #43DF56

split-complementary

#437EDF #DF5643 #CCDF43

monochromatic

#18458F #215FC4 #437EDF #77A2E8 #ACC6F1

Accessibility & contrast

On white

3.97

#437EDF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.29

#437EDF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437EDF

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437EDF	#FFFFFF	#000000	##000000
##437EDF	1.00	3.97	5.29	5.29
#FFFFFF	3.97	1.00	21.00	21.00
#000000	5.29	21.00	1.00	1.00
##000000	5.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E87E3

Deuteranopia (green-blind)

#3279DD

Tritanopia (blue-blind)

#0095A4

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #437edf;
/* rgb */ color: rgb(67, 126, 223);
/* oklch */ color: oklch(60.2% 0.160 259.8);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#437edf",
  "rgb": {
    "r": 67,
    "g": 126,
    "b": 223
  },
  "hsl": {
    "h": 217.308,
    "s": 70.909,
    "l": 56.863
  },
  "oklch": {
    "l": 0.60244,
    "c": 0.16016,
    "h": 259.8
  },
  "luminance": 0.21443
}

Semantic roles & 50–950 ramp

primary

#437EDF

secondary

#DFC79F

accent

#AA3AEE

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0F16

muted

#7E7E84

Preview Lab

Preview with #437EDF

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

Preview Lab → · Contrast checker → · Palette generator →