#3B7BCB#3B7BCB

#3B7BCB is a mid, vivid cyan. Relative luminance 0.194; OKLCH L 58.0% C 0.140 H 255.4°. Best body text is #000000 at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#3B7BCB
RGB	rgb(59, 123, 203)
HSL	hsl(213, 58%, 51%)
HSV	hsv(213, 71%, 80%)
CMYK	cmyk(70.9%, 39.4%, 0%, 20.4%)
CIE-LAB	lab(51.16, 6.24, -47.44)
CIE-LCH	lch(51.16, 47.85, 277.49°)
OKLab	oklab(58.04% -0.0353 -0.1353)
OKLCH	oklch(58.04% 0.14 255.4)
XYZ	xyz(19.6621, 19.4054, 59.1977)
Luminance	0.1941 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B7BCB #CB8B3B

analogous

#3BC3CB #3B7BCB #433BCB

triadic

#3B7BCB #CB3B7B #7BCB3B

tetradic

#3B7BCB #CB3BC3 #CB8B3B #3BCB43

square

#3B7BCB #CB3BC3 #CB8B3B #3BCB43

split-complementary

#3B7BCB #CB433B #C3CB3B

monochromatic

#1D416E #2A5E9F #3B7BCB #6B9CD8 #9CBCE5

Accessibility & contrast

On white

4.30

#3B7BCB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.88

#3B7BCB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3B7BCB

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B7BCB	#FFFFFF	#000000	##000000
##3B7BCB	1.00	4.30	4.88	4.88
#FFFFFF	4.30	1.00	21.00	21.00
#000000	4.88	21.00	1.00	1.00
##000000	4.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5681CE

Deuteranopia (green-blind)

#3F74C9

Tritanopia (blue-blind)

#008E99

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #3b7bcb;
/* rgb */ color: rgb(59, 123, 203);
/* oklch */ color: oklch(58.0% 0.140 255.4);

Tailwind

colors: {
  custom: {
    50: '#82a0db',
    500: '#3b7bcb',
    950: '#000000',
  },
}

SCSS

$custom: #3b7bcb;
$custom-light: #82a0db;
$custom-dark: #000000;

JSON

{
  "hex": "#3b7bcb",
  "rgb": {
    "r": 59,
    "g": 123,
    "b": 203
  },
  "hsl": {
    "h": 213.333,
    "s": 58.065,
    "l": 51.373
  },
  "oklch": {
    "l": 0.58035,
    "c": 0.13981,
    "h": 255.4
  },
  "luminance": 0.19408
}

Semantic roles & 50–950 ramp

primary

#3B7BCB

secondary

#D1B491

accent

#9C47E1

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3B7BCB

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

Preview Lab → · Contrast checker → · Palette generator →