#37A4D2#37A4D2

#37A4D2 is a light, moderate cyan. Relative luminance 0.320; OKLCH L 67.7% C 0.117 H 230.5°. Best body text is #000000 at 7.40:1 contrast (WCAG AA passes).

Color values

HEX	#37A4D2
RGB	rgb(55, 164, 210)
HSL	hsl(198, 63%, 52%)
HSV	hsv(198, 74%, 82%)
CMYK	cmyk(73.8%, 21.9%, 0%, 17.6%)
CIE-LAB	lab(63.35, -15.49, -32.23)
CIE-LCH	lch(63.35, 35.75, 244.33°)
OKLab	oklab(67.74% -0.0746 -0.0906)
OKLCH	oklch(67.74% 0.117 230.5)
XYZ	xyz(26.4792, 32.0132, 65.7439)
Luminance	0.3202 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37A4D2 #D26537

analogous

#37D2B2 #37A4D2 #3757D2

triadic

#37A4D2 #D237A4 #A4D237

tetradic

#37A4D2 #B237D2 #D26537 #57D237

square

#37A4D2 #B237D2 #D26537 #57D237

split-complementary

#37A4D2 #D23757 #D2B237

monochromatic

#1A5A74 #2580A6 #37A4D2 #69BBDD #9BD1E8

Accessibility & contrast

On white

2.84

#37A4D2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.40

#37A4D2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37A4D2

7.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37A4D2	#FFFFFF	#000000	##000000
##37A4D2	1.00	2.84	7.40	7.40
#FFFFFF	2.84	1.00	21.00	21.00
#000000	7.40	21.00	1.00	1.00
##000000	7.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8DA2D4

Deuteranopia (green-blind)

#7893D1

Tritanopia (blue-blind)

#00B1B3

Achromatopsia (no color)

#999999

Design tokens & code

CSS

--color: #37a4d2;
/* rgb */ color: rgb(55, 164, 210);
/* oklch */ color: oklch(67.7% 0.117 230.5);

Tailwind

colors: {
  custom: {
    50: '#83bfe0',
    500: '#37a4d2',
    950: '#000000',
  },
}

SCSS

$custom: #37a4d2;
$custom-light: #83bfe0;
$custom-dark: #000000;

JSON

{
  "hex": "#37a4d2",
  "rgb": {
    "r": 55,
    "g": 164,
    "b": 210
  },
  "hsl": {
    "h": 197.806,
    "s": 63.265,
    "l": 51.961
  },
  "oklch": {
    "l": 0.67739,
    "c": 0.11733,
    "h": 230.5
  },
  "luminance": 0.32016
}

Semantic roles & 50–950 ramp

primary

#37A4D2

secondary

#D4A590

accent

#7241E6

background

#F8FBFD

surface

#F0F7FB

border

#CBD0D4

text

#0C1215

muted

#7D8183

Preview Lab

Preview with #37A4D2

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

Preview Lab → · Contrast checker → · Palette generator →