#3F77AE#3F77AE

#3F77AE is a mid, moderate cyan. Relative luminance 0.173; OKLCH L 55.6% C 0.105 H 249.8°. Best body text is #FFFFFF at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#3F77AE
RGB	rgb(63, 119, 174)
HSL	hsl(210, 47%, 46%)
HSV	hsv(210, 64%, 68%)
CMYK	cmyk(63.8%, 31.6%, 0%, 31.8%)
CIE-LAB	lab(48.64, -0.93, -34.73)
CIE-LCH	lch(48.64, 34.75, 268.47°)
OKLab	oklab(55.62% -0.036 -0.0981)
OKLCH	oklch(55.62% 0.105 249.8)
XYZ	xyz(16.2839, 17.3048, 42.5182)
Luminance	0.1731 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F77AE #AE763F

analogous

#3FAEAE #3F77AE #3F40AE

triadic

#3F77AE #AE3F77 #77AE3F

tetradic

#3F77AE #AE3FAE #AE763F #40AE3F

square

#3F77AE #AE3FAE #AE763F #40AE3F

split-complementary

#3F77AE #AE3F40 #AEAE3F

monochromatic

#1E3A54 #2F5881 #3F77AE #6496C7 #90B4D7

Accessibility & contrast

On white

4.71

#3F77AE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.46

#3F77AE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F77AE

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F77AE	#FFFFFF	#000000	##FFFFFF
##3F77AE	1.00	4.71	4.46	4.71
#FFFFFF	4.71	1.00	21.00	1.00
#000000	4.46	21.00	1.00	21.00
##FFFFFF	4.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F79B0

Deuteranopia (green-blind)

#506FAD

Tritanopia (blue-blind)

#00848B

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3f77ae;
/* rgb */ color: rgb(63, 119, 174);
/* oklch */ color: oklch(55.6% 0.105 249.8);

Tailwind

colors: {
  custom: {
    50: '#7f9ec6',
    500: '#3f77ae',
    950: '#000000',
  },
}

SCSS

$custom: #3f77ae;
$custom-light: #7f9ec6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f77ae",
  "rgb": {
    "r": 63,
    "g": 119,
    "b": 174
  },
  "hsl": {
    "h": 209.73,
    "s": 46.835,
    "l": 46.471
  },
  "oklch": {
    "l": 0.55618,
    "c": 0.10452,
    "h": 249.8
  },
  "luminance": 0.17306
}

Semantic roles & 50–950 ramp

primary

#3F77AE

secondary

#C2A487

accent

#9351D6

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3F77AE

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

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