#437BBD#437BBD

#437BBD is a mid, moderate cyan. Relative luminance 0.190; OKLCH L 57.5% C 0.118 H 253.8°. Best body text is #000000 at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#437BBD
RGB	rgb(67, 123, 189)
HSL	hsl(212, 48%, 50%)
HSV	hsv(212, 65%, 74%)
CMYK	cmyk(64.6%, 34.9%, 0%, 25.9%)
CIE-LAB	lab(50.72, 2.58, -40.11)
CIE-LCH	lch(50.72, 40.19, 273.68°)
OKLab	oklab(57.54% -0.033 -0.1137)
OKLCH	oklch(57.54% 0.118 253.8)
XYZ	xyz(18.5797, 19.0315, 50.8285)
Luminance	0.1903 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437BBD #BD8543

analogous

#43B8BD #437BBD #4843BD

triadic

#437BBD #BD437B #7BBD43

tetradic

#437BBD #BD43B8 #BD8543 #43BD48

square

#437BBD #BD43B8 #BD8543 #43BD48

split-complementary

#437BBD #BD4843 #B8BD43

monochromatic

#234063 #335E90 #437BBD #709BCD #9EBBDD

Accessibility & contrast

On white

4.37

#437BBD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.81

#437BBD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437BBD

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437BBD	#FFFFFF	#000000	##000000
##437BBD	1.00	4.37	4.81	4.81
#FFFFFF	4.37	1.00	21.00	21.00
#000000	4.81	21.00	1.00	1.00
##000000	4.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E7FC0

Deuteranopia (green-blind)

#4D74BC

Tritanopia (blue-blind)

#008A93

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #437bbd;
/* rgb */ color: rgb(67, 123, 189);
/* oklch */ color: oklch(57.5% 0.118 253.8);

Tailwind

colors: {
  custom: {
    50: '#83a0d1',
    500: '#437bbd',
    950: '#000000',
  },
}

SCSS

$custom: #437bbd;
$custom-light: #83a0d1;
$custom-dark: #000000;

JSON

{
  "hex": "#437bbd",
  "rgb": {
    "r": 67,
    "g": 123,
    "b": 189
  },
  "hsl": {
    "h": 212.459,
    "s": 48.031,
    "l": 50.196
  },
  "oklch": {
    "l": 0.5754,
    "c": 0.11836,
    "h": 253.8
  },
  "luminance": 0.19033
}

Semantic roles & 50–950 ramp

primary

#437BBD

secondary

#C9B093

accent

#9950D8

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #437BBD

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

Preview Lab → · Contrast checker → · Palette generator →