#437FCF#437FCF

#437FCF is a mid, vivid cyan. Relative luminance 0.209; OKLCH L 59.5% C 0.138 H 256.4°. Best body text is #000000 at 5.18:1 contrast (WCAG AA passes).

Color values

HEX	#437FCF
RGB	rgb(67, 127, 207)
HSL	hsl(214, 59%, 54%)
HSV	hsv(214, 68%, 81%)
CMYK	cmyk(67.6%, 38.6%, 0%, 18.8%)
CIE-LAB	lab(52.81, 6.44, -47.07)
CIE-LCH	lch(52.81, 47.51, 277.80°)
OKLab	oklab(59.48% -0.0325 -0.134)
OKLCH	oklch(59.48% 0.138 256.4)
XYZ	xyz(21.1625, 20.8749, 61.9334)
Luminance	0.2088 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437FCF #CF9343

analogous

#43C5CF #437FCF #4D43CF

triadic

#437FCF #CF437F #7FCF43

tetradic

#437FCF #CF43C5 #CF9343 #43CF4D

square

#437FCF #CF43C5 #CF9343 #43CF4D

split-complementary

#437FCF #CF4D43 #C5CF43

monochromatic

#1F4579 #2B61AA #437FCF #74A0DB #A5C1E8

Accessibility & contrast

On white

4.06

#437FCF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.18

#437FCF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437FCF

5.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437FCF	#FFFFFF	#000000	##000000
##437FCF	1.00	4.06	5.18	5.18
#FFFFFF	4.06	1.00	21.00	21.00
#000000	5.18	21.00	1.00	1.00
##000000	5.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B85D2

Deuteranopia (green-blind)

#4678CD

Tritanopia (blue-blind)

#00919D

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #437fcf;
/* rgb */ color: rgb(67, 127, 207);
/* oklch */ color: oklch(59.5% 0.138 256.4);

Tailwind

colors: {
  custom: {
    50: '#86a3de',
    500: '#437fcf',
    950: '#000000',
  },
}

SCSS

$custom: #437fcf;
$custom-light: #86a3de;
$custom-dark: #000000;

JSON

{
  "hex": "#437fcf",
  "rgb": {
    "r": 67,
    "g": 127,
    "b": 207
  },
  "hsl": {
    "h": 214.286,
    "s": 59.322,
    "l": 53.725
  },
  "oklch": {
    "l": 0.59476,
    "c": 0.13789,
    "h": 256.4
  },
  "luminance": 0.20877
}

Semantic roles & 50–950 ramp

primary

#437FCF

secondary

#D5BB99

accent

#9F45E3

background

#F8FAFD

surface

#F0F3FB

border

#CBCDD4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #437FCF

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

Preview Lab → · Contrast checker → · Palette generator →