#3F91AA#3F91AA

#3F91AA is a mid, moderate cyan. Relative luminance 0.242; OKLCH L 61.6% C 0.087 H 221.0°. Best body text is #000000 at 5.84:1 contrast (WCAG AA passes).

Color values

HEX	#3F91AA
RGB	rgb(63, 145, 170)
HSL	hsl(194, 46%, 46%)
HSV	hsv(194, 63%, 67%)
CMYK	cmyk(62.9%, 14.7%, 0%, 33.3%)
CIE-LAB	lab(56.30, -17.08, -20.56)
CIE-LCH	lch(56.30, 26.73, 230.28°)
OKLab	oklab(61.64% -0.0658 -0.0572)
OKLCH	oklch(61.64% 0.087 221)
XYZ	xyz(19.4281, 24.2078, 41.6711)
Luminance	0.2421 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F91AA #AA583F

analogous

#3FAA8D #3F91AA #3F5BAA

triadic

#3F91AA #AA3F91 #91AA3F

tetradic

#3F91AA #8D3FAA #AA583F #5BAA3F

square

#3F91AA #8D3FAA #AA583F #5BAA3F

split-complementary

#3F91AA #AA3F5B #AA8D3F

monochromatic

#1E4551 #2E6B7D #3F91AA #62ADC5 #8EC5D5

Accessibility & contrast

On white

3.59

#3F91AA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.84

#3F91AA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F91AA

5.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F91AA	#FFFFFF	#000000	##000000
##3F91AA	1.00	3.59	5.84	5.84
#FFFFFF	3.59	1.00	21.00	21.00
#000000	5.84	21.00	1.00	1.00
##000000	5.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#828DAB

Deuteranopia (green-blind)

#7382AA

Tritanopia (blue-blind)

#009999

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #3f91aa;
/* rgb */ color: rgb(63, 145, 170);
/* oklch */ color: oklch(61.6% 0.087 221.0);

Tailwind

colors: {
  custom: {
    50: '#7fb1c3',
    500: '#3f91aa',
    950: '#000000',
  },
}

SCSS

$custom: #3f91aa;
$custom-light: #7fb1c3;
$custom-dark: #000000;

JSON

{
  "hex": "#3f91aa",
  "rgb": {
    "r": 63,
    "g": 145,
    "b": 170
  },
  "hsl": {
    "h": 194.019,
    "s": 45.923,
    "l": 45.686
  },
  "oklch": {
    "l": 0.61636,
    "c": 0.08721,
    "h": 221
  },
  "luminance": 0.2421
}

Semantic roles & 50–950 ramp

primary

#3F91AA

secondary

#C09385

accent

#7152D6

background

#F8FAFC

surface

#EFF5F8

border

#CACFD1

text

#0B1012

muted

#7C7F81

Preview Lab

Preview with #3F91AA

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

Preview Lab → · Contrast checker → · Palette generator →