#437BDD#437BDD

#437BDD is a mid, vivid blue. Relative luminance 0.206; OKLCH L 59.5% C 0.161 H 260.7°. Best body text is #000000 at 5.12:1 contrast (WCAG AA passes).

Color values

HEX	#437BDD
RGB	rgb(67, 123, 221)
HSL	hsl(218, 69%, 56%)
HSV	hsv(218, 70%, 87%)
CMYK	cmyk(69.7%, 44.3%, 0%, 13.3%)
CIE-LAB	lab(52.48, 13.86, -55.50)
CIE-LCH	lch(52.48, 57.21, 284.02°)
OKLab	oklab(59.48% -0.026 -0.1588)
OKLCH	oklch(59.48% 0.161 260.7)
XYZ	xyz(22.4442, 20.5773, 71.1816)
Luminance	0.2058 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437BDD #DDA543

analogous

#43C8DD #437BDD #5843DD

triadic

#437BDD #DD437B #7BDD43

tetradic

#437BDD #DD43C8 #DDA543 #43DD58

square

#437BDD #DD43C8 #DDA543 #43DD58

split-complementary

#437BDD #DD5843 #C8DD43

monochromatic

#19438C #235CC0 #437BDD #779FE6 #ABC4F0

Accessibility & contrast

On white

4.10

#437BDD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.12

#437BDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437BDD

5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437BDD	#FFFFFF	#000000	##000000
##437BDD	1.00	4.10	5.12	5.12
#FFFFFF	4.10	1.00	21.00	21.00
#000000	5.12	21.00	1.00	1.00
##000000	5.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A85E1

Deuteranopia (green-blind)

#2D77DB

Tritanopia (blue-blind)

#0092A1

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #437bdd;
/* rgb */ color: rgb(67, 123, 221);
/* oklch */ color: oklch(59.5% 0.161 260.7);

Tailwind

colors: {
  custom: {
    50: '#88a0e8',
    500: '#437bdd',
    950: '#000000',
  },
}

SCSS

$custom: #437bdd;
$custom-light: #88a0e8;
$custom-dark: #000000;

JSON

{
  "hex": "#437bdd",
  "rgb": {
    "r": 67,
    "g": 123,
    "b": 221
  },
  "hsl": {
    "h": 218.182,
    "s": 69.369,
    "l": 56.471
  },
  "oklch": {
    "l": 0.59477,
    "c": 0.16093,
    "h": 260.7
  },
  "luminance": 0.2058
}

Semantic roles & 50–950 ramp

primary

#437BDD

secondary

#DEC79E

accent

#AC3CEC

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #437BDD

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

Preview Lab → · Contrast checker → · Palette generator →