#3B91AB#3B91AB

#3B91AB is a mid, moderate cyan. Relative luminance 0.241; OKLCH L 61.5% C 0.090 H 221.2°. Best body text is #000000 at 5.82:1 contrast (WCAG AA passes).

Color values

HEX	#3B91AB
RGB	rgb(59, 145, 171)
HSL	hsl(194, 49%, 45%)
HSV	hsv(194, 65%, 67%)
CMYK	cmyk(65.5%, 15.2%, 0%, 32.9%)
CIE-LAB	lab(56.21, -17.47, -21.28)
CIE-LCH	lch(56.21, 27.53, 230.61°)
OKLab	oklab(61.54% -0.0678 -0.0593)
OKLCH	oklch(61.54% 0.09 221.2)
XYZ	xyz(19.2767, 24.1188, 42.1597)
Luminance	0.2412 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B91AB #AB553B

analogous

#3BAB8D #3B91AB #3B59AB

triadic

#3B91AB #AB3B91 #91AB3B

tetradic

#3B91AB #8D3BAB #AB553B #59AB3B

square

#3B91AB #8D3BAB #AB553B #59AB3B

split-complementary

#3B91AB #AB3B59 #AB8D3B

monochromatic

#1C4450 #2B6A7D #3B91AB #5CAEC7 #8AC5D7

Accessibility & contrast

On white

3.61

#3B91AB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.82

#3B91AB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3B91AB

5.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B91AB	#FFFFFF	#000000	##000000
##3B91AB	1.00	3.61	5.82	5.82
#FFFFFF	3.61	1.00	21.00	21.00
#000000	5.82	21.00	1.00	1.00
##000000	5.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#818DAC

Deuteranopia (green-blind)

#7282AB

Tritanopia (blue-blind)

#009999

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #3b91ab;
/* rgb */ color: rgb(59, 145, 171);
/* oklch */ color: oklch(61.5% 0.090 221.2);

Tailwind

colors: {
  custom: {
    50: '#7eb1c4',
    500: '#3b91ab',
    950: '#000000',
  },
}

SCSS

$custom: #3b91ab;
$custom-light: #7eb1c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3b91ab",
  "rgb": {
    "r": 59,
    "g": 145,
    "b": 171
  },
  "hsl": {
    "h": 193.929,
    "s": 48.696,
    "l": 45.098
  },
  "oklch": {
    "l": 0.61542,
    "c": 0.0901,
    "h": 221.2
  },
  "luminance": 0.24121
}

Semantic roles & 50–950 ramp

primary

#3B91AB

secondary

#C19081

accent

#6F50D8

background

#F8FAFC

surface

#EFF5F8

border

#CACFD1

text

#0B1012

muted

#7C7F81

Preview Lab

Preview with #3B91AB

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

Preview Lab → · Contrast checker → · Palette generator →