#3991BA#3991BA

#3991BA is a light, moderate cyan. Relative luminance 0.247; OKLCH L 62.2% C 0.103 H 232.1°. Best body text is #000000 at 5.93:1 contrast (WCAG AA passes).

Color values

HEX	#3991BA
RGB	rgb(57, 145, 186)
HSL	hsl(199, 53%, 48%)
HSV	hsv(199, 69%, 73%)
CMYK	cmyk(69.4%, 22%, 0%, 27.1%)
CIE-LAB	lab(56.75, -12.87, -29.00)
CIE-LCH	lch(56.75, 31.72, 246.06°)
OKLab	oklab(62.15% -0.0633 -0.0814)
OKLCH	oklch(62.15% 0.103 232.1)
XYZ	xyz(20.6722, 24.6635, 50.1159)
Luminance	0.2467 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3991BA #BA6239

analogous

#39BAA2 #3991BA #3950BA

triadic

#3991BA #BA3991 #91BA39

tetradic

#3991BA #A239BA #BA6239 #50BA39

square

#3991BA #A239BA #BA6239 #50BA39

split-complementary

#3991BA #BA3950 #BAA239

monochromatic

#1C485C #2B6C8B #3991BA #61ACCF #90C5DD

Accessibility & contrast

On white

3.54

#3991BA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.93

#3991BA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3991BA

5.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3991BA	#FFFFFF	#000000	##000000
##3991BA	1.00	3.54	5.93	5.93
#FFFFFF	3.54	1.00	21.00	21.00
#000000	5.93	21.00	1.00	1.00
##000000	5.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D8FBC

Deuteranopia (green-blind)

#6B83B9

Tritanopia (blue-blind)

#009C9F

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #3991ba;
/* rgb */ color: rgb(57, 145, 186);
/* oklch */ color: oklch(62.2% 0.103 232.1);

Tailwind

colors: {
  custom: {
    50: '#7fb1cf',
    500: '#3991ba',
    950: '#000000',
  },
}

SCSS

$custom: #3991ba;
$custom-light: #7fb1cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3991ba",
  "rgb": {
    "r": 57,
    "g": 145,
    "b": 186
  },
  "hsl": {
    "h": 199.07,
    "s": 53.086,
    "l": 47.647
  },
  "oklch": {
    "l": 0.62154,
    "c": 0.10311,
    "h": 232.1
  },
  "luminance": 0.24666
}

Semantic roles & 50–950 ramp

primary

#3991BA

secondary

#C89C87

accent

#794BDC

background

#F8FAFC

surface

#EFF5F9

border

#CACFD2

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3991BA

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

Preview Lab → · Contrast checker → · Palette generator →