#3A90CB#3A90CB

#3A90CB is a light, vivid cyan. Relative luminance 0.252; OKLCH L 62.8% C 0.121 H 242.4°. Best body text is #000000 at 6.03:1 contrast (WCAG AA passes).

Color values

HEX	#3A90CB
RGB	rgb(58, 144, 203)
HSL	hsl(204, 58%, 51%)
HSV	hsv(204, 71%, 80%)
CMYK	cmyk(71.4%, 29.1%, 0%, 20.4%)
CIE-LAB	lab(57.23, -6.36, -37.86)
CIE-LCH	lch(57.23, 38.39, 260.47°)
OKLab	oklab(62.79% -0.056 -0.107)
OKLCH	oklch(62.79% 0.121 242.4)
XYZ	xyz(22.4935, 25.1553, 60.1583)
Luminance	0.2516 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A90CB #CB753A

analogous

#3ACBBD #3A90CB #3A47CB

triadic

#3A90CB #CB3A90 #90CB3A

tetradic

#3A90CB #BD3ACB #CB753A #47CB3A

square

#3A90CB #BD3ACB #CB753A #47CB3A

split-complementary

#3A90CB #CB3A47 #CBBD3A

monochromatic

#1D4D6E #2A6F9E #3A90CB #6AABD8 #9BC7E5

Accessibility & contrast

On white

3.48

#3A90CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.03

#3A90CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3A90CB

6.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A90CB	#FFFFFF	#000000	##000000
##3A90CB	1.00	3.48	6.03	6.03
#FFFFFF	3.48	1.00	21.00	21.00
#000000	6.03	21.00	1.00	1.00
##000000	6.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7591CE

Deuteranopia (green-blind)

#6183CA

Tritanopia (blue-blind)

#009FA5

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #3a90cb;
/* rgb */ color: rgb(58, 144, 203);
/* oklch */ color: oklch(62.8% 0.121 242.4);

Tailwind

colors: {
  custom: {
    50: '#82b0db',
    500: '#3a90cb',
    950: '#000000',
  },
}

SCSS

$custom: #3a90cb;
$custom-light: #82b0db;
$custom-dark: #000000;

JSON

{
  "hex": "#3a90cb",
  "rgb": {
    "r": 58,
    "g": 144,
    "b": 203
  },
  "hsl": {
    "h": 204.414,
    "s": 58.233,
    "l": 51.176
  },
  "oklch": {
    "l": 0.6279,
    "c": 0.1208,
    "h": 242.4
  },
  "luminance": 0.25158
}

Semantic roles & 50–950 ramp

primary

#3A90CB

secondary

#D0AA90

accent

#8546E1

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #3A90CB

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

Preview Lab → · Contrast checker → · Palette generator →