#437BCA#437BCA

#437BCA is a mid, vivid blue. Relative luminance 0.196; OKLCH L 58.3% C 0.136 H 257.3°. Best body text is #000000 at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#437BCA
RGB	rgb(67, 123, 202)
HSL	hsl(215, 56%, 53%)
HSV	hsv(215, 67%, 79%)
CMYK	cmyk(66.8%, 39.1%, 0%, 20.8%)
CIE-LAB	lab(51.41, 7.12, -46.46)
CIE-LCH	lch(51.41, 47.00, 278.71°)
OKLab	oklab(58.29% -0.0298 -0.1323)
OKLCH	oklch(58.29% 0.136 257.3)
XYZ	xyz(20.0545, 19.6215, 58.5961)
Luminance	0.1962 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437BCA #CA9243

analogous

#43BFCA #437BCA #4E43CA

triadic

#437BCA #CA437B #7BCA43

tetradic

#437BCA #CA43BF #CA9243 #43CA4E

square

#437BCA #CA43BF #CA9243 #43CA4E

split-complementary

#437BCA #CA4E43 #BFCA43

monochromatic

#204272 #2E5EA2 #437BCA #739DD7 #A2BEE5

Accessibility & contrast

On white

4.26

#437BCA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.92

#437BCA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437BCA

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437BCA	#FFFFFF	#000000	##000000
##437BCA	1.00	4.26	4.92	4.92
#FFFFFF	4.26	1.00	21.00	21.00
#000000	4.92	21.00	1.00	1.00
##000000	4.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5781CD

Deuteranopia (green-blind)

#4375C8

Tritanopia (blue-blind)

#008D99

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #437bca;
/* rgb */ color: rgb(67, 123, 202);
/* oklch */ color: oklch(58.3% 0.136 257.3);

Tailwind

colors: {
  custom: {
    50: '#85a0da',
    500: '#437bca',
    950: '#000000',
  },
}

SCSS

$custom: #437bca;
$custom-light: #85a0da;
$custom-dark: #000000;

JSON

{
  "hex": "#437bca",
  "rgb": {
    "r": 67,
    "g": 123,
    "b": 202
  },
  "hsl": {
    "h": 215.111,
    "s": 56.017,
    "l": 52.745
  },
  "oklch": {
    "l": 0.58295,
    "c": 0.13558,
    "h": 257.3
  },
  "luminance": 0.19623
}

Semantic roles & 50–950 ramp

primary

#437BCA

secondary

#D2B997

accent

#A148DF

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #437BCA

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

Preview Lab → · Contrast checker → · Palette generator →