#306F8B#306F8B

#306F8B is a mid, moderate cyan. Relative luminance 0.139; OKLCH L 51.3% C 0.078 H 230.1°. Best body text is #FFFFFF at 5.57:1 contrast (WCAG AA passes).

Color values

HEX	#306F8B
RGB	rgb(48, 111, 139)
HSL	hsl(198, 49%, 37%)
HSV	hsv(198, 65%, 55%)
CMYK	cmyk(65.5%, 20.1%, 0%, 45.5%)
CIE-LAB	lab(44.03, -11.02, -21.35)
CIE-LCH	lch(44.03, 24.02, 242.70°)
OKLab	oklab(51.29% -0.0499 -0.0597)
OKLCH	oklch(51.29% 0.078 230.1)
XYZ	xyz(11.5617, 13.8601, 26.4871)
Luminance	0.1386 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#306F8B #8B4C30

analogous

#308B7A #306F8B #30418B

triadic

#306F8B #8B306F #6F8B30

tetradic

#306F8B #7A308B #8B4C30 #418B30

square

#306F8B #7A308B #8B4C30 #418B30

split-complementary

#306F8B #8B3041 #8B7A30

monochromatic

#112630 #204B5E #306F8B #4093B8 #6AADCC

Accessibility & contrast

On white

5.57

#306F8B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.77

#306F8B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #306F8B

5.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##306F8B	#FFFFFF	#000000	##FFFFFF
##306F8B	1.00	5.57	3.77	5.57
#FFFFFF	5.57	1.00	21.00	1.00
#000000	3.77	21.00	1.00	21.00
##FFFFFF	5.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#616D8C

Deuteranopia (green-blind)

#54648B

Tritanopia (blue-blind)

#007778

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #306f8b;
/* rgb */ color: rgb(48, 111, 139);
/* oklch */ color: oklch(51.3% 0.078 230.1);

Tailwind

colors: {
  custom: {
    50: '#7298ad',
    500: '#306f8b',
    950: '#000000',
  },
}

SCSS

$custom: #306f8b;
$custom-light: #7298ad;
$custom-dark: #000000;

JSON

{
  "hex": "#306f8b",
  "rgb": {
    "r": 48,
    "g": 111,
    "b": 139
  },
  "hsl": {
    "h": 198.462,
    "s": 48.663,
    "l": 36.667
  },
  "oklch": {
    "l": 0.51287,
    "c": 0.07783,
    "h": 230.1
  },
  "luminance": 0.13861
}

Semantic roles & 50–950 ramp

primary

#306F8B

secondary

#B37C64

accent

#7A50D8

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#090D10

muted

#7B7E7F

Preview Lab

Preview with #306F8B

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

Preview Lab → · Contrast checker → · Palette generator →