#3F7EB0#3F7EB0

#3F7EB0 is a mid, moderate cyan. Relative luminance 0.191; OKLCH L 57.4% C 0.101 H 244.9°. Best body text is #000000 at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#3F7EB0
RGB	rgb(63, 126, 176)
HSL	hsl(207, 47%, 47%)
HSV	hsv(207, 64%, 69%)
CMYK	cmyk(64.2%, 28.4%, 0%, 31%)
CIE-LAB	lab(50.82, -4.40, -32.48)
CIE-LCH	lch(50.82, 32.78, 262.28°)
OKLab	oklab(57.36% -0.0429 -0.0915)
OKLCH	oklch(57.36% 0.101 244.9)
XYZ	xyz(17.3443, 19.1113, 43.8407)
Luminance	0.1911 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7EB0 #B0713F

analogous

#3FB0AA #3F7EB0 #3F46B0

triadic

#3F7EB0 #B03F7E #7EB03F

tetradic

#3F7EB0 #AA3FB0 #B0713F #46B03F

square

#3F7EB0 #AA3FB0 #B0713F #46B03F

split-complementary

#3F7EB0 #B03F46 #B0AA3F

monochromatic

#1F3D56 #2F5E83 #3F7EB0 #659CC8 #92B9D8

Accessibility & contrast

On white

4.35

#3F7EB0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.82

#3F7EB0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7EB0

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7EB0	#FFFFFF	#000000	##000000
##3F7EB0	1.00	4.35	4.82	4.82
#FFFFFF	4.35	1.00	21.00	21.00
#000000	4.82	21.00	1.00	1.00
##000000	4.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#687FB2

Deuteranopia (green-blind)

#5974AF

Tritanopia (blue-blind)

#008A8F

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #3f7eb0;
/* rgb */ color: rgb(63, 126, 176);
/* oklch */ color: oklch(57.4% 0.101 244.9);

Tailwind

colors: {
  custom: {
    50: '#7fa3c8',
    500: '#3f7eb0',
    950: '#000000',
  },
}

SCSS

$custom: #3f7eb0;
$custom-light: #7fa3c8;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7eb0",
  "rgb": {
    "r": 63,
    "g": 126,
    "b": 176
  },
  "hsl": {
    "h": 206.549,
    "s": 47.28,
    "l": 46.863
  },
  "oklch": {
    "l": 0.57362,
    "c": 0.1011,
    "h": 244.9
  },
  "luminance": 0.19113
}

Semantic roles & 50–950 ramp

primary

#3F7EB0

secondary

#C3A288

accent

#8C51D7

background

#F8FAFC

surface

#EFF3F8

border

#CACDD1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #3F7EB0

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

Preview Lab → · Contrast checker → · Palette generator →