#28589B#28589B

#28589B is a mid, vivid cyan. Relative luminance 0.098; OKLCH L 46.3% C 0.121 H 257.4°. Best body text is #FFFFFF at 7.10:1 contrast (WCAG AA passes).

Color values

HEX	#28589B
RGB	rgb(40, 88, 155)
HSL	hsl(215, 59%, 38%)
HSV	hsv(215, 74%, 61%)
CMYK	cmyk(74.2%, 43.2%, 0%, 39.2%)
CIE-LAB	lab(37.47, 7.73, -41.26)
CIE-LCH	lch(37.47, 41.98, 280.61°)
OKLab	oklab(46.31% -0.0265 -0.118)
OKLCH	oklch(46.31% 0.121 257.4)
XYZ	xyz(10.2790, 9.7960, 32.3531)
Luminance	0.0980 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28589B #9B6B28

analogous

#28919B #28589B #32289B

triadic

#28589B #9B2858 #589B28

tetradic

#28589B #9B2891 #9B6B28 #289B32

square

#28589B #9B2891 #9B6B28 #289B32

split-complementary

#28589B #9B3228 #919B28

monochromatic

#0F213A #1B3C6A #28589B #3574CB #6695D7

Accessibility & contrast

On white

7.10

#28589B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.96

#28589B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28589B

7.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28589B	#FFFFFF	#000000	##FFFFFF
##28589B	1.00	7.10	2.96	7.10
#FFFFFF	7.10	1.00	21.00	1.00
#000000	2.96	21.00	1.00	21.00
##FFFFFF	7.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#375E9E

Deuteranopia (green-blind)

#23539A

Tritanopia (blue-blind)

#006872

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #28589b;
/* rgb */ color: rgb(40, 88, 155);
/* oklch */ color: oklch(46.3% 0.121 257.4);

Tailwind

colors: {
  custom: {
    50: '#7286b9',
    500: '#28589b',
    950: '#000000',
  },
}

SCSS

$custom: #28589b;
$custom-light: #7286b9;
$custom-dark: #000000;

JSON

{
  "hex": "#28589b",
  "rgb": {
    "r": 40,
    "g": 88,
    "b": 155
  },
  "hsl": {
    "h": 214.957,
    "s": 58.974,
    "l": 38.235
  },
  "oklch": {
    "l": 0.46312,
    "c": 0.1209,
    "h": 257.4
  },
  "luminance": 0.09797
}

Semantic roles & 50–950 ramp

primary

#28589B

secondary

#BD9761

accent

#A146E2

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#090B11

muted

#7B7C80

Preview Lab

Preview with #28589B

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

Preview Lab → · Contrast checker → · Palette generator →