#3F7EA5#3F7EA5

#3F7EA5 is a mid, moderate cyan. Relative luminance 0.187; OKLCH L 56.8% C 0.089 H 238.2°. Best body text is #000000 at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#3F7EA5
RGB	rgb(63, 126, 165)
HSL	hsl(203, 45%, 45%)
HSV	hsv(203, 62%, 65%)
CMYK	cmyk(61.8%, 23.6%, 0%, 35.3%)
CIE-LAB	lab(50.33, -8.10, -26.87)
CIE-LCH	lch(50.33, 28.07, 253.23°)
OKLab	oklab(56.81% -0.0466 -0.0753)
OKLCH	oklch(56.81% 0.089 238.2)
XYZ	xyz(16.2997, 18.6935, 38.3392)
Luminance	0.1870 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7EA5 #A5663F

analogous

#3FA599 #3F7EA5 #3F4BA5

triadic

#3F7EA5 #A53F7E #7EA53F

tetradic

#3F7EA5 #993FA5 #A5663F #4BA53F

square

#3F7EA5 #993FA5 #A5663F #4BA53F

split-complementary

#3F7EA5 #A53F4B #A5993F

monochromatic

#1D3A4C #2E5C79 #3F7EA5 #5F9CC2 #8CB8D3

Accessibility & contrast

On white

4.43

#3F7EA5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.74

#3F7EA5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7EA5

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7EA5	#FFFFFF	#000000	##000000
##3F7EA5	1.00	4.43	4.74	4.74
#FFFFFF	4.43	1.00	21.00	21.00
#000000	4.74	21.00	1.00	1.00
##000000	4.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C7EA7

Deuteranopia (green-blind)

#5E73A4

Tritanopia (blue-blind)

#00888B

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #3f7ea5;
/* rgb */ color: rgb(63, 126, 165);
/* oklch */ color: oklch(56.8% 0.089 238.2);

Tailwind

colors: {
  custom: {
    50: '#7ea3c0',
    500: '#3f7ea5',
    950: '#000000',
  },
}

SCSS

$custom: #3f7ea5;
$custom-light: #7ea3c0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7ea5",
  "rgb": {
    "r": 63,
    "g": 126,
    "b": 165
  },
  "hsl": {
    "h": 202.941,
    "s": 44.737,
    "l": 44.706
  },
  "oklch": {
    "l": 0.56813,
    "c": 0.0886,
    "h": 238.2
  },
  "luminance": 0.18695
}

Semantic roles & 50–950 ramp

primary

#3F7EA5

secondary

#BE9982

accent

#8553D4

background

#F8FAFB

surface

#EFF3F7

border

#CACDD0

text

#0B0F12

muted

#7C7F81

Preview Lab

Preview with #3F7EA5

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

Preview Lab → · Contrast checker → · Palette generator →