#307EB3#307EB3

#307EB3 is a mid, moderate cyan. Relative luminance 0.188; OKLCH L 57.0% C 0.111 H 242.3°. Best body text is #000000 at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#307EB3
RGB	rgb(48, 126, 179)
HSL	hsl(204, 58%, 45%)
HSV	hsv(204, 73%, 70%)
CMYK	cmyk(73.2%, 29.6%, 0%, 29.8%)
CIE-LAB	lab(50.46, -5.77, -34.82)
CIE-LCH	lch(50.46, 35.29, 260.59°)
OKLab	oklab(56.98% -0.0517 -0.0985)
OKLCH	oklch(56.98% 0.111 242.3)
XYZ	xyz(16.8133, 18.8029, 45.3823)
Luminance	0.1880 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307EB3 #B36530

analogous

#30B3A7 #307EB3 #303DB3

triadic

#307EB3 #B3307E #7EB330

tetradic

#307EB3 #A730B3 #B36530 #3DB330

square

#307EB3 #A730B3 #B36530 #3DB330

split-complementary

#307EB3 #B3303D #B3A730

monochromatic

#163A52 #235C83 #307EB3 #509CD0 #80B8DD

Accessibility & contrast

On white

4.41

#307EB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.76

#307EB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #307EB3

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307EB3	#FFFFFF	#000000	##000000
##307EB3	1.00	4.41	4.76	4.76
#FFFFFF	4.41	1.00	21.00	21.00
#000000	4.76	21.00	1.00	1.00
##000000	4.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#667FB5

Deuteranopia (green-blind)

#5473B2

Tritanopia (blue-blind)

#008B91

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #307eb3;
/* rgb */ color: rgb(48, 126, 179);
/* oklch */ color: oklch(57.0% 0.111 242.3);

Tailwind

colors: {
  custom: {
    50: '#79a3ca',
    500: '#307eb3',
    950: '#000000',
  },
}

SCSS

$custom: #307eb3;
$custom-light: #79a3ca;
$custom-dark: #000000;

JSON

{
  "hex": "#307eb3",
  "rgb": {
    "r": 48,
    "g": 126,
    "b": 179
  },
  "hsl": {
    "h": 204.275,
    "s": 57.709,
    "l": 44.51
  },
  "oklch": {
    "l": 0.56982,
    "c": 0.1112,
    "h": 242.3
  },
  "luminance": 0.18805
}

Semantic roles & 50–950 ramp

primary

#307EB3

secondary

#C69879

accent

#8547E1

background

#F8FAFC

surface

#EFF3F8

border

#CACDD1

text

#0A0F13

muted

#7C7F82

Preview Lab

Preview with #307EB3

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

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