#437BD2#437BD2

#437BD2 is a mid, vivid blue. Relative luminance 0.200; OKLCH L 58.8% C 0.146 H 258.9°. Best body text is #000000 at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#437BD2
RGB	rgb(67, 123, 210)
HSL	hsl(217, 61%, 54%)
HSV	hsv(217, 68%, 82%)
CMYK	cmyk(68.1%, 41.4%, 0%, 17.6%)
CIE-LAB	lab(51.85, 9.95, -50.30)
CIE-LCH	lch(51.85, 51.28, 281.18°)
OKLab	oklab(58.78% -0.028 -0.1435)
OKLCH	oklch(58.78% 0.146 258.9)
XYZ	xyz(21.0264, 20.0102, 63.7145)
Luminance	0.2001 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437BD2 #D29A43

analogous

#43C3D2 #437BD2 #5343D2

triadic

#437BD2 #D2437B #7BD243

tetradic

#437BD2 #D243C3 #D29A43 #43D253

square

#437BD2 #D243C3 #D29A43 #43D253

split-complementary

#437BD2 #D25343 #C3D243

monochromatic

#1E437D #2A5EAE #437BD2 #749EDE #A6C0EA

Accessibility & contrast

On white

4.20

#437BD2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.00

#437BD2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437BD2

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437BD2	#FFFFFF	#000000	##000000
##437BD2	1.00	4.20	5.00	5.00
#FFFFFF	4.20	1.00	21.00	21.00
#000000	5.00	21.00	1.00	1.00
##000000	5.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5283D5

Deuteranopia (green-blind)

#3B75D0

Tritanopia (blue-blind)

#008F9C

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #437bd2;
/* rgb */ color: rgb(67, 123, 210);
/* oklch */ color: oklch(58.8% 0.146 258.9);

Tailwind

colors: {
  custom: {
    50: '#86a0e0',
    500: '#437bd2',
    950: '#000000',
  },
}

SCSS

$custom: #437bd2;
$custom-light: #86a0e0;
$custom-dark: #000000;

JSON

{
  "hex": "#437bd2",
  "rgb": {
    "r": 67,
    "g": 123,
    "b": 210
  },
  "hsl": {
    "h": 216.503,
    "s": 61.373,
    "l": 54.314
  },
  "oklch": {
    "l": 0.58781,
    "c": 0.14626,
    "h": 258.9
  },
  "luminance": 0.20012
}

Semantic roles & 50–950 ramp

primary

#437BD2

secondary

#D7BF9A

accent

#A543E4

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #437BD2

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

Preview Lab → · Contrast checker → · Palette generator →