#307EB2#307EB2

#307EB2 is a mid, moderate cyan. Relative luminance 0.188; OKLCH L 56.9% C 0.110 H 241.8°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#307EB2
RGB	rgb(48, 126, 178)
HSL	hsl(204, 58%, 44%)
HSV	hsv(204, 73%, 70%)
CMYK	cmyk(73%, 29.2%, 0%, 30.2%)
CIE-LAB	lab(50.41, -6.13, -34.31)
CIE-LCH	lch(50.41, 34.86, 259.88°)
OKLab	oklab(56.93% -0.052 -0.097)
OKLCH	oklch(56.93% 0.11 241.8)
XYZ	xyz(16.7125, 18.7625, 44.8516)
Luminance	0.1876 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307EB2 #B26430

analogous

#30B2A5 #307EB2 #303DB2

triadic

#307EB2 #B2307E #7EB230

tetradic

#307EB2 #A530B2 #B26430 #3DB230

square

#307EB2 #A530B2 #B26430 #3DB230

split-complementary

#307EB2 #B2303D #B2A530

monochromatic

#163A52 #235C82 #307EB2 #509CD0 #80B7DD

Accessibility & contrast

On white

4.42

#307EB2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#307EB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #307EB2

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307EB2	#FFFFFF	#000000	##000000
##307EB2	1.00	4.42	4.75	4.75
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#667FB4

Deuteranopia (green-blind)

#5472B1

Tritanopia (blue-blind)

#008B90

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #307eb2;
/* rgb */ color: rgb(48, 126, 178);
/* oklch */ color: oklch(56.9% 0.110 241.8);

Tailwind

colors: {
  custom: {
    50: '#79a3c9',
    500: '#307eb2',
    950: '#000000',
  },
}

SCSS

$custom: #307eb2;
$custom-light: #79a3c9;
$custom-dark: #000000;

JSON

{
  "hex": "#307eb2",
  "rgb": {
    "r": 48,
    "g": 126,
    "b": 178
  },
  "hsl": {
    "h": 204,
    "s": 57.522,
    "l": 44.314
  },
  "oklch": {
    "l": 0.56929,
    "c": 0.11006,
    "h": 241.8
  },
  "luminance": 0.18764
}

Semantic roles & 50–950 ramp

primary

#307EB2

secondary

#C69778

accent

#8547E1

background

#F7FAFC

surface

#EEF3F8

border

#C9CDD1

text

#0A0F13

muted

#7C7F82

Preview Lab

Preview with #307EB2

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

Preview Lab → · Contrast checker → · Palette generator →