#307DBA#307DBA

#307DBA is a mid, vivid cyan. Relative luminance 0.188; OKLCH L 57.1% C 0.120 H 246.2°. Best body text is #000000 at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#307DBA
RGB	rgb(48, 125, 186)
HSL	hsl(207, 59%, 46%)
HSV	hsv(207, 74%, 73%)
CMYK	cmyk(74.2%, 32.8%, 0%, 27.1%)
CIE-LAB	lab(50.50, -2.66, -38.78)
CIE-LCH	lch(50.50, 38.87, 266.08°)
OKLab	oklab(57.13% -0.0486 -0.11)
OKLCH	oklch(57.13% 0.12 246.2)
XYZ	xyz(17.4121, 18.8388, 49.1634)
Luminance	0.1884 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307DBA #BA6D30

analogous

#30BAB2 #307DBA #3038BA

triadic

#307DBA #BA307D #7DBA30

tetradic

#307DBA #B230BA #BA6D30 #38BA30

square

#307DBA #B230BA #BA6D30 #38BA30

split-complementary

#307DBA #BA3038 #BAB230

monochromatic

#173C59 #235C89 #307DBA #549BD3 #85B7DF

Accessibility & contrast

On white

4.40

#307DBA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.77

#307DBA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #307DBA

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307DBA	#FFFFFF	#000000	##000000
##307DBA	1.00	4.40	4.77	4.77
#FFFFFF	4.40	1.00	21.00	21.00
#000000	4.77	21.00	1.00	1.00
##000000	4.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#617FBD

Deuteranopia (green-blind)

#4E72B9

Tritanopia (blue-blind)

#008C93

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #307dba;
/* rgb */ color: rgb(48, 125, 186);
/* oklch */ color: oklch(57.1% 0.120 246.2);

Tailwind

colors: {
  custom: {
    50: '#7ba2cf',
    500: '#307dba',
    950: '#000000',
  },
}

SCSS

$custom: #307dba;
$custom-light: #7ba2cf;
$custom-dark: #000000;

JSON

{
  "hex": "#307dba",
  "rgb": {
    "r": 48,
    "g": 125,
    "b": 186
  },
  "hsl": {
    "h": 206.522,
    "s": 58.974,
    "l": 45.882
  },
  "oklch": {
    "l": 0.57128,
    "c": 0.12027,
    "h": 246.2
  },
  "luminance": 0.18841
}

Semantic roles & 50–950 ramp

primary

#307DBA

secondary

#C99E7D

accent

#8B46E2

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0F14

muted

#7C7E82

Preview Lab

Preview with #307DBA

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

Preview Lab → · Contrast checker → · Palette generator →