#307FB9#307FB9

#307FB9 is a mid, moderate cyan. Relative luminance 0.193; OKLCH L 57.5% C 0.117 H 244.4°. Best body text is #000000 at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#307FB9
RGB	rgb(48, 127, 185)
HSL	hsl(205, 59%, 46%)
HSV	hsv(205, 74%, 73%)
CMYK	cmyk(74.1%, 31.4%, 0%, 27.5%)
CIE-LAB	lab(51.05, -4.21, -37.35)
CIE-LCH	lch(51.05, 37.58, 263.57°)
OKLab	oklab(57.54% -0.0508 -0.1058)
OKLCH	oklch(57.54% 0.117 244.4)
XYZ	xyz(17.5619, 19.3079, 48.6908)
Luminance	0.1931 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307FB9 #B96A30

analogous

#30B9AE #307FB9 #303BB9

triadic

#307FB9 #B9307F #7FB930

tetradic

#307FB9 #AE30B9 #B96A30 #3BB930

square

#307FB9 #AE30B9 #B96A30 #3BB930

split-complementary

#307FB9 #B9303B #B9AE30

monochromatic

#173C58 #235E88 #307FB9 #549DD3 #84B9DF

Accessibility & contrast

On white

4.32

#307FB9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.86

#307FB9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #307FB9

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307FB9	#FFFFFF	#000000	##000000
##307FB9	1.00	4.32	4.86	4.86
#FFFFFF	4.32	1.00	21.00	21.00
#000000	4.86	21.00	1.00	1.00
##000000	4.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6481BC

Deuteranopia (green-blind)

#5174B8

Tritanopia (blue-blind)

#008D94

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #307fb9;
/* rgb */ color: rgb(48, 127, 185);
/* oklch */ color: oklch(57.5% 0.117 244.4);

Tailwind

colors: {
  custom: {
    50: '#7ba3ce',
    500: '#307fb9',
    950: '#000000',
  },
}

SCSS

$custom: #307fb9;
$custom-light: #7ba3ce;
$custom-dark: #000000;

JSON

{
  "hex": "#307fb9",
  "rgb": {
    "r": 48,
    "g": 127,
    "b": 185
  },
  "hsl": {
    "h": 205.401,
    "s": 58.798,
    "l": 45.686
  },
  "oklch": {
    "l": 0.57543,
    "c": 0.11737,
    "h": 244.4
  },
  "luminance": 0.1931
}

Semantic roles & 50–950 ramp

primary

#307FB9

secondary

#C99D7C

accent

#8846E2

background

#F8FAFC

surface

#EFF3F9

border

#CACDD2

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #307FB9

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

Preview Lab → · Contrast checker → · Palette generator →