#437BDE#437BDE

#437BDE is a mid, vivid blue. Relative luminance 0.206; OKLCH L 59.5% C 0.162 H 260.9°. Best body text is #000000 at 5.13:1 contrast (WCAG AA passes).

Color values

HEX	#437BDE
RGB	rgb(67, 123, 222)
HSL	hsl(218, 70%, 57%)
HSV	hsv(218, 70%, 87%)
CMYK	cmyk(69.8%, 44.6%, 0%, 12.9%)
CIE-LAB	lab(52.54, 14.22, -55.97)
CIE-LCH	lch(52.54, 57.75, 284.25°)
OKLab	oklab(59.54% -0.0258 -0.1602)
OKLCH	oklch(59.54% 0.162 260.9)
XYZ	xyz(22.5778, 20.6308, 71.8853)
Luminance	0.2063 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437BDE #DEA643

analogous

#43C8DE #437BDE #5943DE

triadic

#437BDE #DE437B #7BDE43

tetradic

#437BDE #DE43C8 #DEA643 #43DE59

square

#437BDE #DE43C8 #DEA643 #43DE59

split-complementary

#437BDE #DE5943 #C8DE43

monochromatic

#19438E #225CC2 #437BDE #77A0E7 #ABC4F0

Accessibility & contrast

On white

4.10

#437BDE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.13

#437BDE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437BDE

5.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437BDE	#FFFFFF	#000000	##000000
##437BDE	1.00	4.10	5.13	5.13
#FFFFFF	4.10	1.00	21.00	21.00
#000000	5.13	21.00	1.00	1.00
##000000	5.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4985E2

Deuteranopia (green-blind)

#2B77DC

Tritanopia (blue-blind)

#0092A2

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #437bde;
/* rgb */ color: rgb(67, 123, 222);
/* oklch */ color: oklch(59.5% 0.162 260.9);

Tailwind

colors: {
  custom: {
    50: '#89a0e9',
    500: '#437bde',
    950: '#000000',
  },
}

SCSS

$custom: #437bde;
$custom-light: #89a0e9;
$custom-dark: #000000;

JSON

{
  "hex": "#437bde",
  "rgb": {
    "r": 67,
    "g": 123,
    "b": 222
  },
  "hsl": {
    "h": 218.323,
    "s": 70.136,
    "l": 56.667
  },
  "oklch": {
    "l": 0.59542,
    "c": 0.16226,
    "h": 260.9
  },
  "luminance": 0.20633
}

Semantic roles & 50–950 ramp

primary

#437BDE

secondary

#DEC79F

accent

#AD3BED

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #437BDE

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

Preview Lab → · Contrast checker → · Palette generator →