#307EBB#307EBB

#307EBB is a mid, vivid cyan. Relative luminance 0.191; OKLCH L 57.4% C 0.121 H 245.9°. Best body text is #000000 at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#307EBB
RGB	rgb(48, 126, 187)
HSL	hsl(206, 59%, 46%)
HSV	hsv(206, 74%, 73%)
CMYK	cmyk(74.3%, 32.6%, 0%, 26.7%)
CIE-LAB	lab(50.85, -2.89, -38.81)
CIE-LCH	lch(50.85, 38.92, 265.74°)
OKLab	oklab(57.42% -0.0492 -0.1101)
OKLCH	oklch(57.42% 0.121 245.9)
XYZ	xyz(17.6460, 19.1359, 49.7677)
Luminance	0.1914 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307EBB #BB6D30

analogous

#30BBB2 #307EBB #3038BB

triadic

#307EBB #BB307E #7EBB30

tetradic

#307EBB #B230BB #BB6D30 #38BB30

square

#307EBB #B230BB #BB6D30 #38BB30

split-complementary

#307EBB #BB3038 #BBB230

monochromatic

#173C5A #235D8A #307EBB #559CD3 #86B8E0

Accessibility & contrast

On white

4.35

#307EBB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.83

#307EBB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #307EBB

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307EBB	#FFFFFF	#000000	##000000
##307EBB	1.00	4.35	4.83	4.83
#FFFFFF	4.35	1.00	21.00	21.00
#000000	4.83	21.00	1.00	1.00
##000000	4.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6280BE

Deuteranopia (green-blind)

#4E73BA

Tritanopia (blue-blind)

#008D94

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #307ebb;
/* rgb */ color: rgb(48, 126, 187);
/* oklch */ color: oklch(57.4% 0.121 245.9);

Tailwind

colors: {
  custom: {
    50: '#7ba3d0',
    500: '#307ebb',
    950: '#000000',
  },
}

SCSS

$custom: #307ebb;
$custom-light: #7ba3d0;
$custom-dark: #000000;

JSON

{
  "hex": "#307ebb",
  "rgb": {
    "r": 48,
    "g": 126,
    "b": 187
  },
  "hsl": {
    "h": 206.331,
    "s": 59.149,
    "l": 46.078
  },
  "oklch": {
    "l": 0.57418,
    "c": 0.1206,
    "h": 245.9
  },
  "luminance": 0.19138
}

Semantic roles & 50–950 ramp

primary

#307EBB

secondary

#C99F7D

accent

#8A45E2

background

#F8FAFC

surface

#EFF3F9

border

#CACDD2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #307EBB

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

Preview Lab → · Contrast checker → · Palette generator →