#3B91CF#3B91CF

#3B91CF is a light, vivid cyan. Relative luminance 0.257; OKLCH L 63.3% C 0.124 H 243.6°. Best body text is #000000 at 6.14:1 contrast (WCAG AA passes).

Color values

HEX	#3B91CF
RGB	rgb(59, 145, 207)
HSL	hsl(205, 61%, 52%)
HSV	hsv(205, 71%, 81%)
CMYK	cmyk(71.5%, 30%, 0%, 18.8%)
CIE-LAB	lab(57.73, -5.40, -39.31)
CIE-LCH	lch(57.73, 39.68, 262.18°)
OKLab	oklab(63.26% -0.0552 -0.1112)
OKLCH	oklch(63.26% 0.124 243.6)
XYZ	xyz(23.1872, 25.6830, 62.7547)
Luminance	0.2569 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B91CF #CF793B

analogous

#3BCFC3 #3B91CF #3B47CF

triadic

#3B91CF #CF3B91 #91CF3B

tetradic

#3B91CF #C33BCF #CF793B #47CF3B

square

#3B91CF #C33BCF #CF793B #47CF3B

split-complementary

#3B91CF #CF3B47 #CFC33B

monochromatic

#1C4F73 #2870A5 #3B91CF #6CADDB #9DC8E7

Accessibility & contrast

On white

3.42

#3B91CF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.14

#3B91CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3B91CF

6.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B91CF	#FFFFFF	#000000	##000000
##3B91CF	1.00	3.42	6.14	6.14
#FFFFFF	3.42	1.00	21.00	21.00
#000000	6.14	21.00	1.00	1.00
##000000	6.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7592D2

Deuteranopia (green-blind)

#6084CE

Tritanopia (blue-blind)

#00A0A7

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #3b91cf;
/* rgb */ color: rgb(59, 145, 207);
/* oklch */ color: oklch(63.3% 0.124 243.6);

Tailwind

colors: {
  custom: {
    50: '#83b1de',
    500: '#3b91cf',
    950: '#000000',
  },
}

SCSS

$custom: #3b91cf;
$custom-light: #83b1de;
$custom-dark: #000000;

JSON

{
  "hex": "#3b91cf",
  "rgb": {
    "r": 59,
    "g": 145,
    "b": 207
  },
  "hsl": {
    "h": 205.135,
    "s": 60.656,
    "l": 52.157
  },
  "oklch": {
    "l": 0.63262,
    "c": 0.12416,
    "h": 243.6
  },
  "luminance": 0.25686
}

Semantic roles & 50–950 ramp

primary

#3B91CF

secondary

#D3AE93

accent

#8744E4

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #3B91CF

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

Preview Lab → · Contrast checker → · Palette generator →