#306CB1#306CB1

#306CB1 is a mid, vivid cyan. Relative luminance 0.145; OKLCH L 52.6% C 0.126 H 253.9°. Best body text is #FFFFFF at 5.38:1 contrast (WCAG AA passes).

Color values

HEX	#306CB1
RGB	rgb(48, 108, 177)
HSL	hsl(212, 57%, 44%)
HSV	hsv(212, 73%, 69%)
CMYK	cmyk(72.9%, 39%, 0%, 30.6%)
CIE-LAB	lab(44.98, 4.42, -42.31)
CIE-LCH	lch(44.98, 42.54, 275.96°)
OKLab	oklab(52.64% -0.0348 -0.1206)
OKLCH	oklch(52.64% 0.126 253.9)
XYZ	xyz(14.5144, 14.5262, 43.6253)
Luminance	0.1453 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#306CB1 #B17530

analogous

#30ADB1 #306CB1 #3530B1

triadic

#306CB1 #B1306C #6CB130

tetradic

#306CB1 #B130AD #B17530 #30B135

square

#306CB1 #B130AD #B17530 #30B135

split-complementary

#306CB1 #B13530 #ADB130

monochromatic

#163151 #234F81 #306CB1 #4F8BCF #7FAADC

Accessibility & contrast

On white

5.38

#306CB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.91

#306CB1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #306CB1

5.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##306CB1	#FFFFFF	#000000	##FFFFFF
##306CB1	1.00	5.38	3.91	5.38
#FFFFFF	5.38	1.00	21.00	1.00
#000000	3.91	21.00	1.00	21.00
##FFFFFF	5.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C71B4

Deuteranopia (green-blind)

#3865B0

Tritanopia (blue-blind)

#007C86

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #306cb1;
/* rgb */ color: rgb(48, 108, 177);
/* oklch */ color: oklch(52.6% 0.126 253.9);

Tailwind

colors: {
  custom: {
    50: '#7995c9',
    500: '#306cb1',
    950: '#000000',
  },
}

SCSS

$custom: #306cb1;
$custom-light: #7995c9;
$custom-dark: #000000;

JSON

{
  "hex": "#306cb1",
  "rgb": {
    "r": 48,
    "g": 108,
    "b": 177
  },
  "hsl": {
    "h": 212.093,
    "s": 57.333,
    "l": 44.118
  },
  "oklch": {
    "l": 0.52644,
    "c": 0.12551,
    "h": 253.9
  },
  "luminance": 0.14528
}

Semantic roles & 50–950 ramp

primary

#306CB1

secondary

#C5A178

accent

#9947E1

background

#F7F9FC

surface

#EEF1F8

border

#C9CBD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #306CB1

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

Preview Lab → · Contrast checker → · Palette generator →