#4B88CB#4B88CB

#4B88CB is a mid, vivid cyan. Relative luminance 0.234; OKLCH L 61.6% C 0.120 H 252.3°. Best body text is #000000 at 5.68:1 contrast (WCAG AA passes).

Color values

HEX	#4B88CB
RGB	rgb(75, 136, 203)
HSL	hsl(211, 55%, 55%)
HSV	hsv(211, 63%, 80%)
CMYK	cmyk(63.1%, 33%, 0%, 20.4%)
CIE-LAB	lab(55.50, 1.05, -40.54)
CIE-LCH	lch(55.50, 40.55, 271.48°)
OKLab	oklab(61.59% -0.0366 -0.1147)
OKLCH	oklch(61.59% 0.12 252.3)
XYZ	xyz(22.4814, 23.4138, 59.8229)
Luminance	0.2342 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B88CB #CB8E4B

analogous

#4BC8CB #4B88CB #4E4BCB

triadic

#4B88CB #CB4B88 #88CB4B

tetradic

#4B88CB #CB4BC8 #CB8E4B #4BCB4E

square

#4B88CB #CB4BC8 #CB8E4B #4BCB4E

split-complementary

#4B88CB #CB4E4B #C8CB4B

monochromatic

#234C79 #316AA8 #4B88CB #7AA7D9 #AAC7E6

Accessibility & contrast

On white

3.70

#4B88CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.68

#4B88CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4B88CB

5.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B88CB	#FFFFFF	#000000	##000000
##4B88CB	1.00	3.70	5.68	5.68
#FFFFFF	3.70	1.00	21.00	21.00
#000000	5.68	21.00	1.00	1.00
##000000	5.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B8CCE

Deuteranopia (green-blind)

#5A7FCA

Tritanopia (blue-blind)

#0098A0

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #4b88cb;
/* rgb */ color: rgb(75, 136, 203);
/* oklch */ color: oklch(61.6% 0.120 252.3);

Tailwind

colors: {
  custom: {
    50: '#89aadb',
    500: '#4b88cb',
    950: '#000000',
  },
}

SCSS

$custom: #4b88cb;
$custom-light: #89aadb;
$custom-dark: #000000;

JSON

{
  "hex": "#4b88cb",
  "rgb": {
    "r": 75,
    "g": 136,
    "b": 203
  },
  "hsl": {
    "h": 211.406,
    "s": 55.172,
    "l": 54.51
  },
  "oklch": {
    "l": 0.61593,
    "c": 0.12039,
    "h": 252.3
  },
  "luminance": 0.23416
}

Semantic roles & 50–950 ramp

primary

#4B88CB

secondary

#D4BA9E

accent

#9749DF

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0D1015

muted

#7D7F83

Preview Lab

Preview with #4B88CB

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

Preview Lab → · Contrast checker → · Palette generator →