#4387B0#4387B0

#4387B0 is a mid, moderate cyan. Relative luminance 0.217; OKLCH L 59.7% C 0.093 H 237.6°. Best body text is #000000 at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#4387B0
RGB	rgb(67, 135, 176)
HSL	hsl(203, 45%, 48%)
HSV	hsv(203, 62%, 69%)
CMYK	cmyk(61.9%, 23.3%, 0%, 31%)
CIE-LAB	lab(53.66, -8.86, -28.05)
CIE-LCH	lch(53.66, 29.41, 252.46°)
OKLab	oklab(59.65% -0.0499 -0.0786)
OKLCH	oklch(59.65% 0.093 237.6)
XYZ	xyz(18.8122, 21.6540, 44.2541)
Luminance	0.2166 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4387B0 #B06C43

analogous

#43B0A3 #4387B0 #4350B0

triadic

#4387B0 #B04387 #87B043

tetradic

#4387B0 #A343B0 #B06C43 #50B043

square

#4387B0 #A343B0 #B06C43 #50B043

split-complementary

#4387B0 #B04350 #B0A343

monochromatic

#214357 #326584 #4387B0 #6AA4C6 #96BFD7

Accessibility & contrast

On white

3.94

#4387B0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.33

#4387B0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4387B0

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4387B0	#FFFFFF	#000000	##000000
##4387B0	1.00	3.94	5.33	5.33
#FFFFFF	3.94	1.00	21.00	21.00
#000000	5.33	21.00	1.00	1.00
##000000	5.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7486B2

Deuteranopia (green-blind)

#657BAF

Tritanopia (blue-blind)

#009195

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #4387b0;
/* rgb */ color: rgb(67, 135, 176);
/* oklch */ color: oklch(59.7% 0.093 237.6);

Tailwind

colors: {
  custom: {
    50: '#81a9c7',
    500: '#4387b0',
    950: '#000000',
  },
}

SCSS

$custom: #4387b0;
$custom-light: #81a9c7;
$custom-dark: #000000;

JSON

{
  "hex": "#4387b0",
  "rgb": {
    "r": 67,
    "g": 135,
    "b": 176
  },
  "hsl": {
    "h": 202.569,
    "s": 44.856,
    "l": 47.647
  },
  "oklch": {
    "l": 0.59653,
    "c": 0.09311,
    "h": 237.6
  },
  "luminance": 0.21656
}

Semantic roles & 50–950 ramp

primary

#4387B0

secondary

#C3A18C

accent

#8453D5

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #4387B0

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

Preview Lab → · Contrast checker → · Palette generator →