#3787AA#3787AA

#3787AA is a mid, moderate cyan. Relative luminance 0.210; OKLCH L 58.9% C 0.094 H 230.2°. Best body text is #000000 at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#3787AA
RGB	rgb(55, 135, 170)
HSL	hsl(198, 51%, 44%)
HSV	hsv(198, 68%, 67%)
CMYK	cmyk(67.6%, 20.6%, 0%, 33.3%)
CIE-LAB	lab(52.99, -12.98, -25.66)
CIE-LCH	lch(52.99, 28.76, 243.16°)
OKLab	oklab(58.93% -0.0599 -0.0719)
OKLCH	oklch(58.93% 0.094 230.2)
XYZ	xyz(17.4923, 21.0406, 41.1618)
Luminance	0.2104 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3787AA #AA5A37

analogous

#37AA94 #3787AA #374EAA

triadic

#3787AA #AA3787 #87AA37

tetradic

#3787AA #9437AA #AA5A37 #4EAA37

square

#3787AA #9437AA #AA5A37 #4EAA37

split-complementary

#3787AA #AA374E #AA9437

monochromatic

#193E4E #28627C #3787AA #56A5C8 #84BED7

Accessibility & contrast

On white

4.03

#3787AA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.21

#3787AA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3787AA

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3787AA	#FFFFFF	#000000	##000000
##3787AA	1.00	4.03	5.21	5.21
#FFFFFF	4.03	1.00	21.00	21.00
#000000	5.21	21.00	1.00	1.00
##000000	5.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7585AC

Deuteranopia (green-blind)

#6579AA

Tritanopia (blue-blind)

#009193

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #3787aa;
/* rgb */ color: rgb(55, 135, 170);
/* oklch */ color: oklch(58.9% 0.094 230.2);

Tailwind

colors: {
  custom: {
    50: '#7baac3',
    500: '#3787aa',
    950: '#000000',
  },
}

SCSS

$custom: #3787aa;
$custom-light: #7baac3;
$custom-dark: #000000;

JSON

{
  "hex": "#3787aa",
  "rgb": {
    "r": 55,
    "g": 135,
    "b": 170
  },
  "hsl": {
    "h": 198.261,
    "s": 51.111,
    "l": 44.118
  },
  "oklch": {
    "l": 0.58926,
    "c": 0.09358,
    "h": 230.2
  },
  "luminance": 0.21042
}

Semantic roles & 50–950 ramp

primary

#3787AA

secondary

#C1917C

accent

#784DDB

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #3787AA

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

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