#305E8B#305E8B

#305E8B is a mid, moderate cyan. Relative luminance 0.105; OKLCH L 47.1% C 0.089 H 249.8°. Best body text is #FFFFFF at 6.78:1 contrast (WCAG AA passes).

Color values

HEX	#305E8B
RGB	rgb(48, 94, 139)
HSL	hsl(210, 49%, 37%)
HSV	hsv(210, 65%, 55%)
CMYK	cmyk(65.5%, 32.4%, 0%, 45.5%)
CIE-LAB	lab(38.72, -0.77, -29.62)
CIE-LCH	lch(38.72, 29.63, 268.52°)
OKLab	oklab(47.08% -0.0308 -0.0837)
OKLCH	oklch(47.08% 0.089 249.8)
XYZ	xyz(9.8801, 10.4969, 25.9265)
Luminance	0.1050 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305E8B #8B5D30

analogous

#308B8B #305E8B #30318B

triadic

#305E8B #8B305E #5E8B30

tetradic

#305E8B #8B308B #8B5D30 #318B30

square

#305E8B #8B308B #8B5D30 #318B30

split-complementary

#305E8B #8B3031 #8B8B30

monochromatic

#112030 #203F5E #305E8B #407DB8 #6A9BCC

Accessibility & contrast

On white

6.78

#305E8B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#305E8B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305E8B

6.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305E8B	#FFFFFF	#000000	##FFFFFF
##305E8B	1.00	6.78	3.10	6.78
#FFFFFF	6.78	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B608D

Deuteranopia (green-blind)

#3E578A

Tritanopia (blue-blind)

#00696E

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #305e8b;
/* rgb */ color: rgb(48, 94, 139);
/* oklch */ color: oklch(47.1% 0.089 249.8);

Tailwind

colors: {
  custom: {
    50: '#728bad',
    500: '#305e8b',
    950: '#000000',
  },
}

SCSS

$custom: #305e8b;
$custom-light: #728bad;
$custom-dark: #000000;

JSON

{
  "hex": "#305e8b",
  "rgb": {
    "r": 48,
    "g": 94,
    "b": 139
  },
  "hsl": {
    "h": 209.67,
    "s": 48.663,
    "l": 36.667
  },
  "oklch": {
    "l": 0.47081,
    "c": 0.08919,
    "h": 249.8
  },
  "luminance": 0.10498
}

Semantic roles & 50–950 ramp

primary

#305E8B

secondary

#B38B64

accent

#9350D8

background

#F7F8FA

surface

#EDF0F4

border

#C8CBCE

text

#080C10

muted

#7B7D7F

Preview Lab

Preview with #305E8B

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

Preview Lab → · Contrast checker → · Palette generator →