#307BB6#307BB6

#307BB6 is a mid, moderate cyan. Relative luminance 0.182; OKLCH L 56.4% C 0.117 H 245.9°. Best body text is #000000 at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#307BB6
RGB	rgb(48, 123, 182)
HSL	hsl(206, 58%, 45%)
HSV	hsv(206, 74%, 71%)
CMYK	cmyk(73.6%, 32.4%, 0%, 28.6%)
CIE-LAB	lab(49.70, -2.91, -37.73)
CIE-LCH	lch(49.70, 37.85, 265.58°)
OKLab	oklab(56.43% -0.0478 -0.107)
OKLCH	oklch(56.43% 0.117 245.9)
XYZ	xyz(16.7421, 18.1698, 46.8717)
Luminance	0.1817 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307BB6 #B66B30

analogous

#30B6AE #307BB6 #3038B6

triadic

#307BB6 #B6307B #7BB630

tetradic

#307BB6 #AE30B6 #B66B30 #38B630

square

#307BB6 #AE30B6 #B66B30 #38B630

split-complementary

#307BB6 #B63038 #B6AE30

monochromatic

#163A55 #235A86 #307BB6 #5299D1 #82B6DE

Accessibility & contrast

On white

4.53

#307BB6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.63

#307BB6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #307BB6

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307BB6	#FFFFFF	#000000	##000000
##307BB6	1.00	4.53	4.63	4.63
#FFFFFF	4.53	1.00	21.00	21.00
#000000	4.63	21.00	1.00	1.00
##000000	4.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#607DB9

Deuteranopia (green-blind)

#4D71B5

Tritanopia (blue-blind)

#008990

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #307bb6;
/* rgb */ color: rgb(48, 123, 182);
/* oklch */ color: oklch(56.4% 0.117 245.9);

Tailwind

colors: {
  custom: {
    50: '#7aa0cc',
    500: '#307bb6',
    950: '#000000',
  },
}

SCSS

$custom: #307bb6;
$custom-light: #7aa0cc;
$custom-dark: #000000;

JSON

{
  "hex": "#307bb6",
  "rgb": {
    "r": 48,
    "g": 123,
    "b": 182
  },
  "hsl": {
    "h": 206.418,
    "s": 58.261,
    "l": 45.098
  },
  "oklch": {
    "l": 0.56434,
    "c": 0.11719,
    "h": 245.9
  },
  "luminance": 0.18172
}

Semantic roles & 50–950 ramp

primary

#307BB6

secondary

#C79C7B

accent

#8B46E1

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #307BB6

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

Preview Lab → · Contrast checker → · Palette generator →