#3F7EB4#3F7EB4

#3F7EB4 is a mid, moderate cyan. Relative luminance 0.193; OKLCH L 57.6% C 0.106 H 246.8°. Best body text is #000000 at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#3F7EB4
RGB	rgb(63, 126, 180)
HSL	hsl(208, 48%, 48%)
HSV	hsv(208, 65%, 71%)
CMYK	cmyk(65%, 30%, 0%, 29.4%)
CIE-LAB	lab(51.00, -3.04, -34.50)
CIE-LCH	lch(51.00, 34.63, 264.97°)
OKLab	oklab(57.57% -0.0417 -0.0974)
OKLCH	oklch(57.57% 0.106 246.8)
XYZ	xyz(17.7459, 19.2720, 45.9558)
Luminance	0.1927 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7EB4 #B4753F

analogous

#3FB4AF #3F7EB4 #3F44B4

triadic

#3F7EB4 #B43F7E #7EB43F

tetradic

#3F7EB4 #AF3FB4 #B4753F #44B43F

square

#3F7EB4 #AF3FB4 #B4753F #44B43F

split-complementary

#3F7EB4 #B43F44 #B4AF3F

monochromatic

#1F3F59 #2F5E87 #3F7EB4 #679CCA #94B9DA

Accessibility & contrast

On white

4.33

#3F7EB4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.85

#3F7EB4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7EB4

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7EB4	#FFFFFF	#000000	##000000
##3F7EB4	1.00	4.33	4.85	4.85
#FFFFFF	4.33	1.00	21.00	21.00
#000000	4.85	21.00	1.00	1.00
##000000	4.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6680B6

Deuteranopia (green-blind)

#5674B3

Tritanopia (blue-blind)

#008B91

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #3f7eb4;
/* rgb */ color: rgb(63, 126, 180);
/* oklch */ color: oklch(57.6% 0.106 246.8);

Tailwind

colors: {
  custom: {
    50: '#80a3ca',
    500: '#3f7eb4',
    950: '#000000',
  },
}

SCSS

$custom: #3f7eb4;
$custom-light: #80a3ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7eb4",
  "rgb": {
    "r": 63,
    "g": 126,
    "b": 180
  },
  "hsl": {
    "h": 207.692,
    "s": 48.148,
    "l": 47.647
  },
  "oklch": {
    "l": 0.57571,
    "c": 0.10592,
    "h": 246.8
  },
  "luminance": 0.19274
}

Semantic roles & 50–950 ramp

primary

#3F7EB4

secondary

#C5A58A

accent

#8F50D8

background

#F8FAFC

surface

#EFF3F8

border

#CACDD1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #3F7EB4

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

Preview Lab → · Contrast checker → · Palette generator →