#306EBB#306EBB

#306EBB is a mid, vivid cyan. Relative luminance 0.154; OKLCH L 53.7% C 0.137 H 255.4°. Best body text is #FFFFFF at 5.16:1 contrast (WCAG AA passes).

Color values

HEX	#306EBB
RGB	rgb(48, 110, 187)
HSL	hsl(213, 59%, 46%)
HSV	hsv(213, 74%, 73%)
CMYK	cmyk(74.3%, 41.2%, 0%, 26.7%)
CIE-LAB	lab(46.13, 6.89, -46.29)
CIE-LCH	lch(46.13, 46.80, 278.46°)
OKLab	oklab(53.73% -0.0343 -0.1322)
OKLCH	oklch(53.73% 0.137 255.4)
XYZ	xyz(15.7612, 15.3663, 49.1394)
Luminance	0.1537 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#306EBB #BB7D30

analogous

#30B3BB #306EBB #3730BB

triadic

#306EBB #BB306E #6EBB30

tetradic

#306EBB #BB30B3 #BB7D30 #30BB37

square

#306EBB #BB30B3 #BB7D30 #30BB37

split-complementary

#306EBB #BB3730 #B3BB30

monochromatic

#17355A #23518A #306EBB #558DD3 #86AEE0

Accessibility & contrast

On white

5.16

#306EBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.07

#306EBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #306EBB

5.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##306EBB	#FFFFFF	#000000	##FFFFFF
##306EBB	1.00	5.16	4.07	5.16
#FFFFFF	5.16	1.00	21.00	1.00
#000000	4.07	21.00	1.00	21.00
##FFFFFF	5.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4974BE

Deuteranopia (green-blind)

#3267B9

Tritanopia (blue-blind)

#00808B

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #306ebb;
/* rgb */ color: rgb(48, 110, 187);
/* oklch */ color: oklch(53.7% 0.137 255.4);

Tailwind

colors: {
  custom: {
    50: '#7b97d0',
    500: '#306ebb',
    950: '#000000',
  },
}

SCSS

$custom: #306ebb;
$custom-light: #7b97d0;
$custom-dark: #000000;

JSON

{
  "hex": "#306ebb",
  "rgb": {
    "r": 48,
    "g": 110,
    "b": 187
  },
  "hsl": {
    "h": 213.237,
    "s": 59.149,
    "l": 46.078
  },
  "oklch": {
    "l": 0.53727,
    "c": 0.13661,
    "h": 255.4
  },
  "luminance": 0.15368
}

Semantic roles & 50–950 ramp

primary

#306EBB

secondary

#C9A77D

accent

#9C45E2

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #306EBB

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

Preview Lab → · Contrast checker → · Palette generator →