#4089B5#4089B5

#4089B5 is a mid, moderate cyan. Relative luminance 0.223; OKLCH L 60.3% C 0.099 H 238.0°. Best body text is #000000 at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#4089B5
RGB	rgb(64, 137, 181)
HSL	hsl(203, 48%, 48%)
HSV	hsv(203, 65%, 71%)
CMYK	cmyk(64.6%, 24.3%, 0%, 29%)
CIE-LAB	lab(54.36, -8.90, -29.83)
CIE-LCH	lch(54.36, 31.13, 253.39°)
OKLab	oklab(60.25% -0.0524 -0.0838)
OKLCH	oklch(60.25% 0.099 238)
XYZ	xyz(19.3973, 22.3155, 46.9922)
Luminance	0.2232 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4089B5 #B56C40

analogous

#40B5A6 #4089B5 #404EB5

triadic

#4089B5 #B54089 #89B540

tetradic

#4089B5 #A640B5 #B56C40 #4EB540

square

#4089B5 #A640B5 #B56C40 #4EB540

split-complementary

#4089B5 #B5404E #B5A640

monochromatic

#20455B #306788 #4089B5 #68A5CA #96C0DA

Accessibility & contrast

On white

3.84

#4089B5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.46

#4089B5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4089B5

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4089B5	#FFFFFF	#000000	##000000
##4089B5	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)

#7589B7

Deuteranopia (green-blind)

#657DB4

Tritanopia (blue-blind)

#009498

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #4089b5;
/* rgb */ color: rgb(64, 137, 181);
/* oklch */ color: oklch(60.3% 0.099 238.0);

Tailwind

colors: {
  custom: {
    50: '#81abcb',
    500: '#4089b5',
    950: '#000000',
  },
}

SCSS

$custom: #4089b5;
$custom-light: #81abcb;
$custom-dark: #000000;

JSON

{
  "hex": "#4089b5",
  "rgb": {
    "r": 64,
    "g": 137,
    "b": 181
  },
  "hsl": {
    "h": 202.564,
    "s": 47.755,
    "l": 48.039
  },
  "oklch": {
    "l": 0.6025,
    "c": 0.09881,
    "h": 238
  },
  "luminance": 0.22318
}

Semantic roles & 50–950 ramp

primary

#4089B5

secondary

#C5A18B

accent

#8350D7

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #4089B5

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

Preview Lab → · Contrast checker → · Palette generator →