#437FDB#437FDB

#437FDB is a mid, vivid blue. Relative luminance 0.215; OKLCH L 60.2% C 0.154 H 258.8°. Best body text is #000000 at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#437FDB
RGB	rgb(67, 127, 219)
HSL	hsl(216, 68%, 56%)
HSV	hsv(216, 69%, 86%)
CMYK	cmyk(69.4%, 42%, 0%, 14.1%)
CIE-LAB	lab(53.48, 10.69, -52.79)
CIE-LCH	lch(53.48, 53.86, 281.45°)
OKLab	oklab(60.21% -0.03 -0.1508)
OKLCH	oklch(60.21% 0.154 258.8)
XYZ	xyz(22.6857, 21.4841, 69.9554)
Luminance	0.2149 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437FDB #DB9F43

analogous

#43CBDB #437FDB #5343DB

triadic

#437FDB #DB437F #7FDB43

tetradic

#437FDB #DB43CB #DB9F43 #43DB53

square

#437FDB #DB43CB #DB9F43 #43DB53

split-complementary

#437FDB #DB5343 #CBDB43

monochromatic

#1A4689 #2460BD #437FDB #76A2E5 #AAC5EF

Accessibility & contrast

On white

3.96

#437FDB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.30

#437FDB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437FDB

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437FDB	#FFFFFF	#000000	##000000
##437FDB	1.00	3.96	5.30	5.30
#FFFFFF	3.96	1.00	21.00	21.00
#000000	5.30	21.00	1.00	1.00
##000000	5.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5387DF

Deuteranopia (green-blind)

#3A79D9

Tritanopia (blue-blind)

#0094A2

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #437fdb;
/* rgb */ color: rgb(67, 127, 219);
/* oklch */ color: oklch(60.2% 0.154 258.8);

Tailwind

colors: {
  custom: {
    50: '#88a3e7',
    500: '#437fdb',
    950: '#000000',
  },
}

SCSS

$custom: #437fdb;
$custom-light: #88a3e7;
$custom-dark: #000000;

JSON

{
  "hex": "#437fdb",
  "rgb": {
    "r": 67,
    "g": 127,
    "b": 219
  },
  "hsl": {
    "h": 216.316,
    "s": 67.857,
    "l": 56.078
  },
  "oklch": {
    "l": 0.60206,
    "c": 0.15374,
    "h": 258.8
  },
  "luminance": 0.21487
}

Semantic roles & 50–950 ramp

primary

#437FDB

secondary

#DCC49E

accent

#A63DEB

background

#F9FAFE

surface

#F1F3FC

border

#CBCDD5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #437FDB

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

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