#3F7FBA#3F7FBA

#3F7FBA is a mid, moderate cyan. Relative luminance 0.198; OKLCH L 58.1% C 0.112 H 248.7°. Best body text is #000000 at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#3F7FBA
RGB	rgb(63, 127, 186)
HSL	hsl(209, 49%, 49%)
HSV	hsv(209, 66%, 73%)
CMYK	cmyk(66.1%, 31.7%, 0%, 27.1%)
CIE-LAB	lab(51.59, -1.56, -37.04)
CIE-LCH	lch(51.59, 37.07, 267.59°)
OKLab	oklab(58.12% -0.0409 -0.1047)
OKLCH	oklch(58.12% 0.112 248.7)
XYZ	xyz(18.4989, 19.7788, 49.2876)
Luminance	0.1978 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7FBA #BA7A3F

analogous

#3FBAB8 #3F7FBA #3F42BA

triadic

#3F7FBA #BA3F7F #7FBA3F

tetradic

#3F7FBA #B83FBA #BA7A3F #42BA3F

square

#3F7FBA #B83FBA #BA7A3F #42BA3F

split-complementary

#3F7FBA #BA3F42 #BAB83F

monochromatic

#20415F #30608C #3F7FBA #6A9DCC #97BBDC

Accessibility & contrast

On white

4.24

#3F7FBA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.96

#3F7FBA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7FBA

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7FBA	#FFFFFF	#000000	##000000
##3F7FBA	1.00	4.24	4.96	4.96
#FFFFFF	4.24	1.00	21.00	21.00
#000000	4.96	21.00	1.00	1.00
##000000	4.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6581BD

Deuteranopia (green-blind)

#5476B9

Tritanopia (blue-blind)

#008D94

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #3f7fba;
/* rgb */ color: rgb(63, 127, 186);
/* oklch */ color: oklch(58.1% 0.112 248.7);

Tailwind

colors: {
  custom: {
    50: '#81a3cf',
    500: '#3f7fba',
    950: '#000000',
  },
}

SCSS

$custom: #3f7fba;
$custom-light: #81a3cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7fba",
  "rgb": {
    "r": 63,
    "g": 127,
    "b": 186
  },
  "hsl": {
    "h": 208.78,
    "s": 49.398,
    "l": 48.824
  },
  "oklch": {
    "l": 0.58124,
    "c": 0.11246,
    "h": 248.7
  },
  "luminance": 0.19781
}

Semantic roles & 50–950 ramp

primary

#3F7FBA

secondary

#C8A98D

accent

#914FD9

background

#F8FAFC

surface

#EFF3F9

border

#CACDD2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #3F7FBA

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

Preview Lab → · Contrast checker → · Palette generator →