#437EA4#437EA4

#437EA4 is a mid, moderate cyan. Relative luminance 0.188; OKLCH L 56.9% C 0.085 H 238.9°. Best body text is #000000 at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#437EA4
RGB	rgb(67, 126, 164)
HSL	hsl(204, 42%, 45%)
HSV	hsv(204, 59%, 64%)
CMYK	cmyk(59.1%, 23.2%, 0%, 35.7%)
CIE-LAB	lab(50.45, -7.62, -26.10)
CIE-LCH	lch(50.45, 27.19, 253.71°)
OKLab	oklab(56.94% -0.044 -0.073)
OKLCH	oklch(56.94% 0.085 238.9)
XYZ	xyz(16.4739, 18.7938, 37.8742)
Luminance	0.1880 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437EA4 #A46943

analogous

#43A499 #437EA4 #434EA4

triadic

#437EA4 #A4437E #7EA443

tetradic

#437EA4 #9943A4 #A46943 #4EA443

square

#437EA4 #9943A4 #A46943 #4EA443

split-complementary

#437EA4 #A4434E #A49943

monochromatic

#1F3B4D #315D79 #437EA4 #649CC0 #90B8D2

Accessibility & contrast

On white

4.41

#437EA4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.76

#437EA4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437EA4

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437EA4	#FFFFFF	#000000	##000000
##437EA4	1.00	4.41	4.76	4.76
#FFFFFF	4.41	1.00	21.00	21.00
#000000	4.76	21.00	1.00	1.00
##000000	4.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D7EA6

Deuteranopia (green-blind)

#5F74A3

Tritanopia (blue-blind)

#00888B

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #437ea4;
/* rgb */ color: rgb(67, 126, 164);
/* oklch */ color: oklch(56.9% 0.085 238.9);

Tailwind

colors: {
  custom: {
    50: '#7fa3bf',
    500: '#437ea4',
    950: '#000000',
  },
}

SCSS

$custom: #437ea4;
$custom-light: #7fa3bf;
$custom-dark: #000000;

JSON

{
  "hex": "#437ea4",
  "rgb": {
    "r": 67,
    "g": 126,
    "b": 164
  },
  "hsl": {
    "h": 203.505,
    "s": 41.991,
    "l": 45.294
  },
  "oklch": {
    "l": 0.56937,
    "c": 0.08528,
    "h": 238.9
  },
  "luminance": 0.18795
}

Semantic roles & 50–950 ramp

primary

#437EA4

secondary

#BD9B86

accent

#8656D2

background

#F8FAFB

surface

#EFF3F7

border

#CACDD0

text

#0B0F12

muted

#7C7F81

Preview Lab

Preview with #437EA4

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

Preview Lab → · Contrast checker → · Palette generator →