#437FD7#437FD7

#437FD7 is a mid, vivid blue. Relative luminance 0.213; OKLCH L 60.0% C 0.148 H 258.0°. Best body text is #000000 at 5.26:1 contrast (WCAG AA passes).

Color values

HEX	#437FD7
RGB	rgb(67, 127, 215)
HSL	hsl(216, 65%, 55%)
HSV	hsv(216, 69%, 84%)
CMYK	cmyk(68.8%, 40.9%, 0%, 15.7%)
CIE-LAB	lab(53.25, 9.27, -50.90)
CIE-LCH	lch(53.25, 51.73, 280.32°)
OKLab	oklab(59.96% -0.0308 -0.1452)
OKLCH	oklch(59.96% 0.148 258)
XYZ	xyz(22.1654, 21.2760, 67.2153)
Luminance	0.2128 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437FD7 #D79B43

analogous

#43C9D7 #437FD7 #5143D7

triadic

#437FD7 #D7437F #7FD743

tetradic

#437FD7 #D743C9 #D79B43 #43D751

square

#437FD7 #D743C9 #D79B43 #43D751

split-complementary

#437FD7 #D75143 #C9D743

monochromatic

#1C4684 #2761B6 #437FD7 #75A1E2 #A8C4EC

Accessibility & contrast

On white

4.00

#437FD7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.26

#437FD7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437FD7

5.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437FD7	#FFFFFF	#000000	##000000
##437FD7	1.00	4.00	5.26	5.26
#FFFFFF	4.00	1.00	21.00	21.00
#000000	5.26	21.00	1.00	1.00
##000000	5.26	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5687DA

Deuteranopia (green-blind)

#3E79D5

Tritanopia (blue-blind)

#0093A0

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #437fd7;
/* rgb */ color: rgb(67, 127, 215);
/* oklch */ color: oklch(60.0% 0.148 258.0);

Tailwind

colors: {
  custom: {
    50: '#87a3e4',
    500: '#437fd7',
    950: '#000000',
  },
}

SCSS

$custom: #437fd7;
$custom-light: #87a3e4;
$custom-dark: #000000;

JSON

{
  "hex": "#437fd7",
  "rgb": {
    "r": 67,
    "g": 127,
    "b": 215
  },
  "hsl": {
    "h": 215.676,
    "s": 64.912,
    "l": 55.294
  },
  "oklch": {
    "l": 0.59958,
    "c": 0.14845,
    "h": 258
  },
  "luminance": 0.21278
}

Semantic roles & 50–950 ramp

primary

#437FD7

secondary

#DAC19C

accent

#A440E8

background

#F8FAFE

surface

#F0F3FC

border

#CBCDD5

text

#0D0F15

muted

#7D7F84

Preview Lab

Preview with #437FD7

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

Preview Lab → · Contrast checker → · Palette generator →