#28638C#28638C

#28638C is a mid, moderate cyan. Relative luminance 0.113; OKLCH L 48.0% C 0.090 H 242.4°. Best body text is #FFFFFF at 6.45:1 contrast (WCAG AA passes).

Color values

HEX	#28638C
RGB	rgb(40, 99, 140)
HSL	hsl(205, 56%, 35%)
HSV	hsv(205, 71%, 55%)
CMYK	cmyk(71.4%, 29.3%, 0%, 45.1%)
CIE-LAB	lab(40.03, -4.91, -28.19)
CIE-LCH	lch(40.03, 28.62, 260.12°)
OKLab	oklab(48.04% -0.0417 -0.0796)
OKLCH	oklch(48.04% 0.09 242.4)
XYZ	xyz(10.0687, 11.2671, 26.4500)
Luminance	0.1127 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28638C #8C5128

analogous

#288C83 #28638C #28318C

triadic

#28638C #8C2863 #638C28

tetradic

#28638C #83288C #8C5128 #318C28

square

#28638C #83288C #8C5128 #318C28

split-complementary

#28638C #8C2831 #8C8328

monochromatic

#0D202D #1A415C #28638C #3685BC #5EA2D1

Accessibility & contrast

On white

6.45

#28638C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#28638C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #28638C

6.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28638C	#FFFFFF	#000000	##FFFFFF
##28638C	1.00	6.45	3.25	6.45
#FFFFFF	6.45	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#50648E

Deuteranopia (green-blind)

#435A8B

Tritanopia (blue-blind)

#006D71

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #28638c;
/* rgb */ color: rgb(40, 99, 140);
/* oklch */ color: oklch(48.0% 0.090 242.4);

Tailwind

colors: {
  custom: {
    50: '#6f8fae',
    500: '#28638c',
    950: '#000000',
  },
}

SCSS

$custom: #28638c;
$custom-light: #6f8fae;
$custom-dark: #000000;

JSON

{
  "hex": "#28638c",
  "rgb": {
    "r": 40,
    "g": 99,
    "b": 140
  },
  "hsl": {
    "h": 204.6,
    "s": 55.556,
    "l": 35.294
  },
  "oklch": {
    "l": 0.48044,
    "c": 0.08986,
    "h": 242.4
  },
  "luminance": 0.11268
}

Semantic roles & 50–950 ramp

primary

#28638C

secondary

#B6805A

accent

#8649DF

background

#F7F8FA

surface

#EDF0F4

border

#C8CBCE

text

#080C10

muted

#7B7D7F

Preview Lab

Preview with #28638C

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

Preview Lab → · Contrast checker → · Palette generator →