#307AB7#307AB7

#307AB7 is a mid, moderate cyan. Relative luminance 0.180; OKLCH L 56.3% C 0.119 H 247.0°. Best body text is #000000 at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#307AB7
RGB	rgb(48, 122, 183)
HSL	hsl(207, 58%, 45%)
HSV	hsv(207, 74%, 72%)
CMYK	cmyk(73.8%, 33.3%, 0%, 28.2%)
CIE-LAB	lab(49.45, -1.95, -38.70)
CIE-LCH	lch(49.45, 38.75, 267.11°)
OKLab	oklab(56.26% -0.0466 -0.1098)
OKLCH	oklch(56.26% 0.119 247)
XYZ	xyz(16.7224, 17.9644, 47.3767)
Luminance	0.1797 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307AB7 #B76D30

analogous

#30B7B0 #307AB7 #3036B7

triadic

#307AB7 #B7307A #7AB730

tetradic

#307AB7 #B030B7 #B76D30 #36B730

square

#307AB7 #B030B7 #B76D30 #36B730

split-complementary

#307AB7 #B73036 #B7B030

monochromatic

#173956 #235A87 #307AB7 #5298D2 #83B5DE

Accessibility & contrast

On white

4.57

#307AB7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.59

#307AB7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #307AB7

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307AB7	#FFFFFF	#000000	##000000
##307AB7	1.00	4.57	4.59	4.59
#FFFFFF	4.57	1.00	21.00	21.00
#000000	4.59	21.00	1.00	1.00
##000000	4.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E7DBA

Deuteranopia (green-blind)

#4B70B6

Tritanopia (blue-blind)

#008990

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #307ab7;
/* rgb */ color: rgb(48, 122, 183);
/* oklch */ color: oklch(56.3% 0.119 247.0);

Tailwind

colors: {
  custom: {
    50: '#7aa0cd',
    500: '#307ab7',
    950: '#000000',
  },
}

SCSS

$custom: #307ab7;
$custom-light: #7aa0cd;
$custom-dark: #000000;

JSON

{
  "hex": "#307ab7",
  "rgb": {
    "r": 48,
    "g": 122,
    "b": 183
  },
  "hsl": {
    "h": 207.111,
    "s": 58.442,
    "l": 45.294
  },
  "oklch": {
    "l": 0.56255,
    "c": 0.1193,
    "h": 247
  },
  "luminance": 0.17966
}

Semantic roles & 50–950 ramp

primary

#307AB7

secondary

#C89E7B

accent

#8C46E2

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #307AB7

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

Preview Lab → · Contrast checker → · Palette generator →