#307EB9#307EB9

#307EB9 is a mid, moderate cyan. Relative luminance 0.191; OKLCH L 57.3% C 0.118 H 245.1°. Best body text is #000000 at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#307EB9
RGB	rgb(48, 126, 185)
HSL	hsl(206, 59%, 46%)
HSV	hsv(206, 74%, 73%)
CMYK	cmyk(74.1%, 31.9%, 0%, 27.5%)
CIE-LAB	lab(50.75, -3.61, -37.82)
CIE-LCH	lch(50.75, 37.99, 264.54°)
OKLab	oklab(57.31% -0.0498 -0.1072)
OKLCH	oklch(57.31% 0.118 245.1)
XYZ	xyz(17.4334, 19.0509, 48.6479)
Luminance	0.1905 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307EB9 #B96B30

analogous

#30B9AF #307EB9 #303AB9

triadic

#307EB9 #B9307E #7EB930

tetradic

#307EB9 #AF30B9 #B96B30 #3AB930

square

#307EB9 #AF30B9 #B96B30 #3AB930

split-complementary

#307EB9 #B9303A #B9AF30

monochromatic

#173C58 #235D88 #307EB9 #549CD3 #84B8DF

Accessibility & contrast

On white

4.37

#307EB9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.81

#307EB9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #307EB9

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307EB9	#FFFFFF	#000000	##000000
##307EB9	1.00	4.37	4.81	4.81
#FFFFFF	4.37	1.00	21.00	21.00
#000000	4.81	21.00	1.00	1.00
##000000	4.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6380BC

Deuteranopia (green-blind)

#5073B8

Tritanopia (blue-blind)

#008C93

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #307eb9;
/* rgb */ color: rgb(48, 126, 185);
/* oklch */ color: oklch(57.3% 0.118 245.1);

Tailwind

colors: {
  custom: {
    50: '#7ba3ce',
    500: '#307eb9',
    950: '#000000',
  },
}

SCSS

$custom: #307eb9;
$custom-light: #7ba3ce;
$custom-dark: #000000;

JSON

{
  "hex": "#307eb9",
  "rgb": {
    "r": 48,
    "g": 126,
    "b": 185
  },
  "hsl": {
    "h": 205.839,
    "s": 58.798,
    "l": 45.686
  },
  "oklch": {
    "l": 0.57308,
    "c": 0.1182,
    "h": 245.1
  },
  "luminance": 0.19053
}

Semantic roles & 50–950 ramp

primary

#307EB9

secondary

#C99D7C

accent

#8946E2

background

#F8FAFC

surface

#EFF3F9

border

#CACDD2

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #307EB9

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

Preview Lab → · Contrast checker → · Palette generator →