#3F7CA8#3F7CA8

#3F7CA8 is a mid, moderate cyan. Relative luminance 0.183; OKLCH L 56.5% C 0.093 H 242.2°. Best body text is #000000 at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#3F7CA8
RGB	rgb(63, 124, 168)
HSL	hsl(205, 45%, 45%)
HSV	hsv(205, 63%, 66%)
CMYK	cmyk(62.5%, 26.2%, 0%, 34.1%)
CIE-LAB	lab(49.86, -5.94, -29.35)
CIE-LCH	lch(49.86, 29.94, 258.56°)
OKLab	oklab(56.48% -0.0434 -0.0825)
OKLCH	oklch(56.48% 0.093 242.2)
XYZ	xyz(16.3228, 18.2976, 39.7098)
Luminance	0.1830 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7CA8 #A86B3F

analogous

#3FA8A0 #3F7CA8 #3F47A8

triadic

#3F7CA8 #A83F7C #7CA83F

tetradic

#3F7CA8 #A03FA8 #A86B3F #47A83F

square

#3F7CA8 #A03FA8 #A86B3F #47A83F

split-complementary

#3F7CA8 #A83F47 #A8A03F

monochromatic

#1E3A4F #2E5B7B #3F7CA8 #619AC4 #8DB6D4

Accessibility & contrast

On white

4.51

#3F7CA8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.66

#3F7CA8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7CA8

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7CA8	#FFFFFF	#000000	##000000
##3F7CA8	1.00	4.51	4.66	4.66
#FFFFFF	4.51	1.00	21.00	21.00
#000000	4.66	21.00	1.00	1.00
##000000	4.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#687CAA

Deuteranopia (green-blind)

#5A72A7

Tritanopia (blue-blind)

#00878B

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3f7ca8;
/* rgb */ color: rgb(63, 124, 168);
/* oklch */ color: oklch(56.5% 0.093 242.2);

Tailwind

colors: {
  custom: {
    50: '#7ea1c2',
    500: '#3f7ca8',
    950: '#000000',
  },
}

SCSS

$custom: #3f7ca8;
$custom-light: #7ea1c2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7ca8",
  "rgb": {
    "r": 63,
    "g": 124,
    "b": 168
  },
  "hsl": {
    "h": 205.143,
    "s": 45.455,
    "l": 45.294
  },
  "oklch": {
    "l": 0.56483,
    "c": 0.09319,
    "h": 242.2
  },
  "luminance": 0.18299
}

Semantic roles & 50–950 ramp

primary

#3F7CA8

secondary

#BF9D84

accent

#8953D5

background

#F8F9FB

surface

#EFF2F7

border

#CACCD0

text

#0B0F12

muted

#7C7E81

Preview Lab

Preview with #3F7CA8

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

Preview Lab → · Contrast checker → · Palette generator →