#437DCF#437DCF

#437DCF is a mid, vivid blue. Relative luminance 0.204; OKLCH L 59.0% C 0.140 H 257.4°. Best body text is #000000 at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#437DCF
RGB	rgb(67, 125, 207)
HSL	hsl(215, 59%, 54%)
HSV	hsv(215, 68%, 81%)
CMYK	cmyk(67.6%, 39.6%, 0%, 18.8%)
CIE-LAB	lab(52.25, 7.66, -47.97)
CIE-LCH	lch(52.25, 48.58, 279.07°)
OKLab	oklab(59.04% -0.0306 -0.1367)
OKLCH	oklch(59.04% 0.14 257.4)
XYZ	xyz(20.9068, 20.3634, 61.8481)
Luminance	0.2037 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437DCF #CF9543

analogous

#43C3CF #437DCF #4F43CF

triadic

#437DCF #CF437D #7DCF43

tetradic

#437DCF #CF43C3 #CF9543 #43CF4F

square

#437DCF #CF43C3 #CF9543 #43CF4F

split-complementary

#437DCF #CF4F43 #C3CF43

monochromatic

#1F4479 #2B60AA #437DCF #749FDB #A5C0E8

Accessibility & contrast

On white

4.14

#437DCF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.07

#437DCF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437DCF

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437DCF	#FFFFFF	#000000	##000000
##437DCF	1.00	4.14	5.07	5.07
#FFFFFF	4.14	1.00	21.00	21.00
#000000	5.07	21.00	1.00	1.00
##000000	5.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5884D2

Deuteranopia (green-blind)

#4277CD

Tritanopia (blue-blind)

#00909C

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #437dcf;
/* rgb */ color: rgb(67, 125, 207);
/* oklch */ color: oklch(59.0% 0.140 257.4);

Tailwind

colors: {
  custom: {
    50: '#86a2de',
    500: '#437dcf',
    950: '#000000',
  },
}

SCSS

$custom: #437dcf;
$custom-light: #86a2de;
$custom-dark: #000000;

JSON

{
  "hex": "#437dcf",
  "rgb": {
    "r": 67,
    "g": 125,
    "b": 207
  },
  "hsl": {
    "h": 215.143,
    "s": 59.322,
    "l": 53.725
  },
  "oklch": {
    "l": 0.59035,
    "c": 0.14005,
    "h": 257.4
  },
  "luminance": 0.20366
}

Semantic roles & 50–950 ramp

primary

#437DCF

secondary

#D5BC99

accent

#A145E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0F15

muted

#7D7E83

Preview Lab

Preview with #437DCF

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

Preview Lab → · Contrast checker → · Palette generator →