#3B88CB#3B88CB

#3B88CB is a mid, vivid cyan. Relative luminance 0.229; OKLCH L 61.0% C 0.127 H 247.9°. Best body text is #000000 at 5.57:1 contrast (WCAG AA passes).

Color values

HEX	#3B88CB
RGB	rgb(59, 136, 203)
HSL	hsl(208, 58%, 51%)
HSV	hsv(208, 71%, 80%)
CMYK	cmyk(70.9%, 33%, 0%, 20.4%)
CIE-LAB	lab(54.91, -1.57, -41.49)
CIE-LCH	lch(54.91, 41.52, 267.83°)
OKLab	oklab(60.98% -0.0477 -0.1177)
OKLCH	oklch(60.98% 0.127 247.9)
XYZ	xyz(21.3832, 22.8476, 59.7714)
Luminance	0.2285 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B88CB #CB7E3B

analogous

#3BCBC6 #3B88CB #3B40CB

triadic

#3B88CB #CB3B88 #88CB3B

tetradic

#3B88CB #C63BCB #CB7E3B #40CB3B

square

#3B88CB #C63BCB #CB7E3B #40CB3B

split-complementary

#3B88CB #CB3B40 #CBC63B

monochromatic

#1D496E #2A689F #3B88CB #6BA5D8 #9CC3E5

Accessibility & contrast

On white

3.77

#3B88CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.57

#3B88CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3B88CB

5.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B88CB	#FFFFFF	#000000	##000000
##3B88CB	1.00	3.77	5.57	5.57
#FFFFFF	3.77	1.00	21.00	21.00
#000000	5.57	21.00	1.00	1.00
##000000	5.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A8BCE

Deuteranopia (green-blind)

#557DCA

Tritanopia (blue-blind)

#0098A0

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #3b88cb;
/* rgb */ color: rgb(59, 136, 203);
/* oklch */ color: oklch(61.0% 0.127 247.9);

Tailwind

colors: {
  custom: {
    50: '#82aadb',
    500: '#3b88cb',
    950: '#000000',
  },
}

SCSS

$custom: #3b88cb;
$custom-light: #82aadb;
$custom-dark: #000000;

JSON

{
  "hex": "#3b88cb",
  "rgb": {
    "r": 59,
    "g": 136,
    "b": 203
  },
  "hsl": {
    "h": 207.917,
    "s": 58.065,
    "l": 51.373
  },
  "oklch": {
    "l": 0.60975,
    "c": 0.12697,
    "h": 247.9
  },
  "luminance": 0.2285
}

Semantic roles & 50–950 ramp

primary

#3B88CB

secondary

#D1AF91

accent

#8F47E1

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #3B88CB

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

Preview Lab → · Contrast checker → · Palette generator →