#3F7EB2#3F7EB2

#3F7EB2 is a mid, moderate cyan. Relative luminance 0.192; OKLCH L 57.5% C 0.103 H 245.9°. Best body text is #000000 at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#3F7EB2
RGB	rgb(63, 126, 178)
HSL	hsl(207, 48%, 47%)
HSV	hsv(207, 65%, 70%)
CMYK	cmyk(64.6%, 29.2%, 0%, 30.2%)
CIE-LAB	lab(50.91, -3.72, -33.49)
CIE-LCH	lch(50.91, 33.70, 263.66°)
OKLab	oklab(57.47% -0.0423 -0.0945)
OKLCH	oklch(57.47% 0.104 245.9)
XYZ	xyz(17.5436, 19.1911, 44.8905)
Luminance	0.1919 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7EB2 #B2733F

analogous

#3FB2AC #3F7EB2 #3F45B2

triadic

#3F7EB2 #B23F7E #7EB23F

tetradic

#3F7EB2 #AC3FB2 #B2733F #45B23F

square

#3F7EB2 #AC3FB2 #B2733F #45B23F

split-complementary

#3F7EB2 #B23F45 #B2AC3F

monochromatic

#1F3E58 #2F5E85 #3F7EB2 #669CC9 #93B9D9

Accessibility & contrast

On white

4.34

#3F7EB2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.84

#3F7EB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7EB2

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7EB2	#FFFFFF	#000000	##000000
##3F7EB2	1.00	4.34	4.84	4.84
#FFFFFF	4.34	1.00	21.00	21.00
#000000	4.84	21.00	1.00	1.00
##000000	4.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#677FB4

Deuteranopia (green-blind)

#5774B1

Tritanopia (blue-blind)

#008A90

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #3f7eb2;
/* rgb */ color: rgb(63, 126, 178);
/* oklch */ color: oklch(57.5% 0.103 245.9);

Tailwind

colors: {
  custom: {
    50: '#7fa3c9',
    500: '#3f7eb2',
    950: '#000000',
  },
}

SCSS

$custom: #3f7eb2;
$custom-light: #7fa3c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7eb2",
  "rgb": {
    "r": 63,
    "g": 126,
    "b": 178
  },
  "hsl": {
    "h": 207.13,
    "s": 47.718,
    "l": 47.255
  },
  "oklch": {
    "l": 0.57466,
    "c": 0.1035,
    "h": 245.9
  },
  "luminance": 0.19193
}

Semantic roles & 50–950 ramp

primary

#3F7EB2

secondary

#C4A489

accent

#8D50D7

background

#F8FAFC

surface

#EFF3F8

border

#CACDD1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #3F7EB2

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

Preview Lab → · Contrast checker → · Palette generator →