#307BB7#307BB7

#307BB7 is a mid, moderate cyan. Relative luminance 0.182; OKLCH L 56.5% C 0.118 H 246.3°. Best body text is #000000 at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#307BB7
RGB	rgb(48, 123, 183)
HSL	hsl(207, 58%, 45%)
HSV	hsv(207, 74%, 72%)
CMYK	cmyk(73.8%, 32.8%, 0%, 28.2%)
CIE-LAB	lab(49.75, -2.55, -38.23)
CIE-LCH	lch(49.75, 38.32, 266.18°)
OKLab	oklab(56.49% -0.0475 -0.1084)
OKLCH	oklch(56.49% 0.118 246.3)
XYZ	xyz(16.8459, 18.2113, 47.4179)
Luminance	0.1821 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307BB7 #B76C30

analogous

#30B7B0 #307BB7 #3037B7

triadic

#307BB7 #B7307B #7BB730

tetradic

#307BB7 #B030B7 #B76C30 #37B730

square

#307BB7 #B030B7 #B76C30 #37B730

split-complementary

#307BB7 #B73037 #B7B030

monochromatic

#173A56 #235A87 #307BB7 #5299D2 #83B6DE

Accessibility & contrast

On white

4.52

#307BB7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.64

#307BB7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #307BB7

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307BB7	#FFFFFF	#000000	##000000
##307BB7	1.00	4.52	4.64	4.64
#FFFFFF	4.52	1.00	21.00	21.00
#000000	4.64	21.00	1.00	1.00
##000000	4.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#607DBA

Deuteranopia (green-blind)

#4D71B6

Tritanopia (blue-blind)

#008990

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #307bb7;
/* rgb */ color: rgb(48, 123, 183);
/* oklch */ color: oklch(56.5% 0.118 246.3);

Tailwind

colors: {
  custom: {
    50: '#7aa0cd',
    500: '#307bb7',
    950: '#000000',
  },
}

SCSS

$custom: #307bb7;
$custom-light: #7aa0cd;
$custom-dark: #000000;

JSON

{
  "hex": "#307bb7",
  "rgb": {
    "r": 48,
    "g": 123,
    "b": 183
  },
  "hsl": {
    "h": 206.667,
    "s": 58.442,
    "l": 45.294
  },
  "oklch": {
    "l": 0.5649,
    "c": 0.11841,
    "h": 246.3
  },
  "luminance": 0.18213
}

Semantic roles & 50–950 ramp

primary

#307BB7

secondary

#C89D7B

accent

#8B46E2

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #307BB7

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

Preview Lab → · Contrast checker → · Palette generator →