#437CCF#437CCF

#437CCF is a mid, vivid blue. Relative luminance 0.201; OKLCH L 58.8% C 0.141 H 257.9°. Best body text is #000000 at 5.02:1 contrast (WCAG AA passes).

Color values

HEX	#437CCF
RGB	rgb(67, 124, 207)
HSL	hsl(216, 59%, 54%)
HSV	hsv(216, 68%, 81%)
CMYK	cmyk(67.6%, 40.1%, 0%, 18.8%)
CIE-LAB	lab(51.96, 8.27, -48.42)
CIE-LCH	lch(51.96, 49.12, 279.69°)
OKLab	oklab(58.82% -0.0296 -0.138)
OKLCH	oklch(58.82% 0.141 257.9)
XYZ	xyz(20.7808, 20.1115, 61.8061)
Luminance	0.2011 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437CCF #CF9643

analogous

#43C2CF #437CCF #5043CF

triadic

#437CCF #CF437C #7CCF43

tetradic

#437CCF #CF43C2 #CF9643 #43CF50

square

#437CCF #CF43C2 #CF9643 #43CF50

split-complementary

#437CCF #CF5043 #C2CF43

monochromatic

#1F4379 #2B5FAA #437CCF #749EDB #A5C0E8

Accessibility & contrast

On white

4.18

#437CCF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.02

#437CCF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437CCF

5.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437CCF	#FFFFFF	#000000	##000000
##437CCF	1.00	4.18	5.02	5.02
#FFFFFF	4.18	1.00	21.00	21.00
#000000	5.02	21.00	1.00	1.00
##000000	5.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5683D2

Deuteranopia (green-blind)

#4076CD

Tritanopia (blue-blind)

#008F9B

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #437ccf;
/* rgb */ color: rgb(67, 124, 207);
/* oklch */ color: oklch(58.8% 0.141 257.9);

Tailwind

colors: {
  custom: {
    50: '#86a1de',
    500: '#437ccf',
    950: '#000000',
  },
}

SCSS

$custom: #437ccf;
$custom-light: #86a1de;
$custom-dark: #000000;

JSON

{
  "hex": "#437ccf",
  "rgb": {
    "r": 67,
    "g": 124,
    "b": 207
  },
  "hsl": {
    "h": 215.571,
    "s": 59.322,
    "l": 53.725
  },
  "oklch": {
    "l": 0.58816,
    "c": 0.14115,
    "h": 257.9
  },
  "luminance": 0.20114
}

Semantic roles & 50–950 ramp

primary

#437CCF

secondary

#D5BC99

accent

#A245E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #437CCF

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

Preview Lab → · Contrast checker → · Palette generator →