#3F7DA4#3F7DA4

#3F7DA4 is a mid, moderate cyan. Relative luminance 0.184; OKLCH L 56.5% C 0.088 H 238.6°. Best body text is #000000 at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#3F7DA4
RGB	rgb(63, 125, 164)
HSL	hsl(203, 44%, 45%)
HSV	hsv(203, 62%, 64%)
CMYK	cmyk(61.6%, 23.8%, 0%, 35.7%)
CIE-LAB	lab(49.98, -7.85, -26.83)
CIE-LCH	lch(49.98, 27.95, 253.68°)
OKLab	oklab(56.52% -0.0459 -0.0752)
OKLCH	oklch(56.52% 0.088 238.6)
XYZ	xyz(16.0818, 18.4028, 37.8193)
Luminance	0.1840 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7DA4 #A4663F

analogous

#3FA498 #3F7DA4 #3F4BA4

triadic

#3F7DA4 #A43F7D #7DA43F

tetradic

#3F7DA4 #983FA4 #A4663F #4BA43F

square

#3F7DA4 #983FA4 #A4663F #4BA43F

split-complementary

#3F7DA4 #A43F4B #A4983F

monochromatic

#1D3A4C #2E5B78 #3F7DA4 #5F9BC1 #8BB7D2

Accessibility & contrast

On white

4.49

#3F7DA4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.68

#3F7DA4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7DA4

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7DA4	#FFFFFF	#000000	##000000
##3F7DA4	1.00	4.49	4.68	4.68
#FFFFFF	4.49	1.00	21.00	21.00
#000000	4.68	21.00	1.00	1.00
##000000	4.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B7DA6

Deuteranopia (green-blind)

#5D72A3

Tritanopia (blue-blind)

#00878A

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3f7da4;
/* rgb */ color: rgb(63, 125, 164);
/* oklch */ color: oklch(56.5% 0.088 238.6);

Tailwind

colors: {
  custom: {
    50: '#7da2bf',
    500: '#3f7da4',
    950: '#000000',
  },
}

SCSS

$custom: #3f7da4;
$custom-light: #7da2bf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7da4",
  "rgb": {
    "r": 63,
    "g": 125,
    "b": 164
  },
  "hsl": {
    "h": 203.168,
    "s": 44.493,
    "l": 44.51
  },
  "oklch": {
    "l": 0.56524,
    "c": 0.08809,
    "h": 238.6
  },
  "luminance": 0.18404
}

Semantic roles & 50–950 ramp

primary

#3F7DA4

secondary

#BD9982

accent

#8554D4

background

#F8F9FB

surface

#EFF2F7

border

#CACCD0

text

#0A0F12

muted

#7C7E81

Preview Lab

Preview with #3F7DA4

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

Preview Lab → · Contrast checker → · Palette generator →