#4188BB#4188BB

#4188BB is a mid, moderate cyan. Relative luminance 0.223; OKLCH L 60.3% C 0.106 H 242.5°. Best body text is #000000 at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#4188BB
RGB	rgb(65, 136, 187)
HSL	hsl(205, 48%, 49%)
HSV	hsv(205, 65%, 73%)
CMYK	cmyk(65.2%, 27.3%, 0%, 26.7%)
CIE-LAB	lab(54.36, -6.14, -33.25)
CIE-LCH	lch(54.36, 33.81, 259.54°)
OKLab	oklab(60.35% -0.0486 -0.0936)
OKLCH	oklch(60.35% 0.106 242.5)
XYZ	xyz(19.9504, 22.3180, 50.2605)
Luminance	0.2232 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4188BB #BB7441

analogous

#41BBB1 #4188BB #414BBB

triadic

#4188BB #BB4188 #88BB41

tetradic

#4188BB #B141BB #BB7441 #4BBB41

square

#4188BB #B141BB #BB7441 #4BBB41

split-complementary

#4188BB #BB414B #BBB141

monochromatic

#214660 #31678E #4188BB #6DA4CC #9AC1DC

Accessibility & contrast

On white

3.84

#4188BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.46

#4188BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4188BB

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4188BB	#FFFFFF	#000000	##000000
##4188BB	1.00	3.84	5.46	5.46
#FFFFFF	3.84	1.00	21.00	21.00
#000000	5.46	21.00	1.00	1.00
##000000	5.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7189BD

Deuteranopia (green-blind)

#607DBA

Tritanopia (blue-blind)

#00959A

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #4188bb;
/* rgb */ color: rgb(65, 136, 187);
/* oklch */ color: oklch(60.3% 0.106 242.5);

Tailwind

colors: {
  custom: {
    50: '#82aacf',
    500: '#4188bb',
    950: '#000000',
  },
}

SCSS

$custom: #4188bb;
$custom-light: #82aacf;
$custom-dark: #000000;

JSON

{
  "hex": "#4188bb",
  "rgb": {
    "r": 65,
    "g": 136,
    "b": 187
  },
  "hsl": {
    "h": 205.082,
    "s": 48.413,
    "l": 49.412
  },
  "oklch": {
    "l": 0.60349,
    "c": 0.10553,
    "h": 242.5
  },
  "luminance": 0.2232
}

Semantic roles & 50–950 ramp

primary

#4188BB

secondary

#C8A790

accent

#8950D8

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0B1014

muted

#7C7F82

Preview Lab

Preview with #4188BB

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

Preview Lab → · Contrast checker → · Palette generator →