#3D75BB#3D75BB

#3D75BB is a mid, vivid cyan. Relative luminance 0.173; OKLCH L 55.8% C 0.124 H 255.1°. Best body text is #FFFFFF at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#3D75BB
RGB	rgb(61, 117, 187)
HSL	hsl(213, 51%, 49%)
HSV	hsv(213, 67%, 73%)
CMYK	cmyk(67.4%, 37.4%, 0%, 26.7%)
CIE-LAB	lab(48.64, 4.49, -42.27)
CIE-LCH	lch(48.64, 42.51, 276.07°)
OKLab	oklab(55.81% -0.0319 -0.1202)
OKLCH	oklch(55.81% 0.124 255.1)
XYZ	xyz(17.2521, 17.3008, 49.4343)
Luminance	0.1730 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D75BB #BB833D

analogous

#3DB4BB #3D75BB #443DBB

triadic

#3D75BB #BB3D75 #75BB3D

tetradic

#3D75BB #BB3DB4 #BB833D #3DBB44

square

#3D75BB #BB3DB4 #BB833D #3DBB44

split-complementary

#3D75BB #BB443D #B4BB3D

monochromatic

#1F3B5F #2E588D #3D75BB #6895CE #96B5DD

Accessibility & contrast

On white

4.71

#3D75BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.46

#3D75BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3D75BB

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D75BB	#FFFFFF	#000000	##FFFFFF
##3D75BB	1.00	4.71	4.46	4.71
#FFFFFF	4.71	1.00	21.00	1.00
#000000	4.46	21.00	1.00	21.00
##FFFFFF	4.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#567ABE

Deuteranopia (green-blind)

#436EBA

Tritanopia (blue-blind)

#00858F

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3d75bb;
/* rgb */ color: rgb(61, 117, 187);
/* oklch */ color: oklch(55.8% 0.124 255.1);

Tailwind

colors: {
  custom: {
    50: '#809cd0',
    500: '#3d75bb',
    950: '#000000',
  },
}

SCSS

$custom: #3d75bb;
$custom-light: #809cd0;
$custom-dark: #000000;

JSON

{
  "hex": "#3d75bb",
  "rgb": {
    "r": 61,
    "g": 117,
    "b": 187
  },
  "hsl": {
    "h": 213.333,
    "s": 50.806,
    "l": 48.627
  },
  "oklch": {
    "l": 0.55809,
    "c": 0.12434,
    "h": 255.1
  },
  "luminance": 0.17303
}

Semantic roles & 50–950 ramp

primary

#3D75BB

secondary

#C8AD8C

accent

#9C4EDA

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3D75BB

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

Preview Lab → · Contrast checker → · Palette generator →