#3F7FA8#3F7FA8

#3F7FA8 is a mid, moderate cyan. Relative luminance 0.191; OKLCH L 57.2% C 0.091 H 239.2°. Best body text is #000000 at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#3F7FA8
RGB	rgb(63, 127, 168)
HSL	hsl(203, 45%, 45%)
HSV	hsv(203, 63%, 66%)
CMYK	cmyk(62.5%, 24.4%, 0%, 34.1%)
CIE-LAB	lab(50.76, -7.68, -27.94)
CIE-LCH	lch(50.76, 28.98, 254.63°)
OKLab	oklab(57.2% -0.0467 -0.0784)
OKLCH	oklch(57.2% 0.091 239.2)
XYZ	xyz(16.7045, 19.0610, 39.8370)
Luminance	0.1906 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7FA8 #A8683F

analogous

#3FA89D #3F7FA8 #3F4AA8

triadic

#3F7FA8 #A83F7F #7FA83F

tetradic

#3F7FA8 #9D3FA8 #A8683F #4AA83F

square

#3F7FA8 #9D3FA8 #A8683F #4AA83F

split-complementary

#3F7FA8 #A83F4A #A89D3F

monochromatic

#1E3C4F #2E5D7B #3F7FA8 #619DC4 #8DB8D4

Accessibility & contrast

On white

4.36

#3F7FA8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.81

#3F7FA8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7FA8

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7FA8	#FFFFFF	#000000	##000000
##3F7FA8	1.00	4.36	4.81	4.81
#FFFFFF	4.36	1.00	21.00	21.00
#000000	4.81	21.00	1.00	1.00
##000000	4.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C7FAA

Deuteranopia (green-blind)

#5E74A7

Tritanopia (blue-blind)

#00898D

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #3f7fa8;
/* rgb */ color: rgb(63, 127, 168);
/* oklch */ color: oklch(57.2% 0.091 239.2);

Tailwind

colors: {
  custom: {
    50: '#7ea4c2',
    500: '#3f7fa8',
    950: '#000000',
  },
}

SCSS

$custom: #3f7fa8;
$custom-light: #7ea4c2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7fa8",
  "rgb": {
    "r": 63,
    "g": 127,
    "b": 168
  },
  "hsl": {
    "h": 203.429,
    "s": 45.455,
    "l": 45.294
  },
  "oklch": {
    "l": 0.57198,
    "c": 0.09126,
    "h": 239.2
  },
  "luminance": 0.19063
}

Semantic roles & 50–950 ramp

primary

#3F7FA8

secondary

#BF9B84

accent

#8653D5

background

#F8FAFB

surface

#EFF3F7

border

#CACDD0

text

#0B0F12

muted

#7C7F81

Preview Lab

Preview with #3F7FA8

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

Preview Lab → · Contrast checker → · Palette generator →