#307BBA#307BBA

#307BBA is a mid, vivid cyan. Relative luminance 0.183; OKLCH L 56.7% C 0.122 H 247.5°. Best body text is #000000 at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#307BBA
RGB	rgb(48, 123, 186)
HSL	hsl(207, 59%, 46%)
HSV	hsv(207, 74%, 73%)
CMYK	cmyk(74.2%, 33.9%, 0%, 27.1%)
CIE-LAB	lab(49.90, -1.46, -39.72)
CIE-LCH	lch(49.90, 39.75, 267.89°)
OKLab	oklab(56.66% -0.0467 -0.1128)
OKLCH	oklch(56.66% 0.122 247.5)
XYZ	xyz(17.1614, 18.3375, 49.0799)
Luminance	0.1834 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307BBA #BA6F30

analogous

#30BAB4 #307BBA #3036BA

triadic

#307BBA #BA307B #7BBA30

tetradic

#307BBA #B430BA #BA6F30 #36BA30

square

#307BBA #B430BA #BA6F30 #36BA30

split-complementary

#307BBA #BA3036 #BAB430

monochromatic

#173B59 #235B89 #307BBA #5499D3 #85B6DF

Accessibility & contrast

On white

4.50

#307BBA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.67

#307BBA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #307BBA

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307BBA	#FFFFFF	#000000	##000000
##307BBA	1.00	4.50	4.67	4.67
#FFFFFF	4.50	1.00	21.00	21.00
#000000	4.67	21.00	1.00	1.00
##000000	4.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E7EBD

Deuteranopia (green-blind)

#4A71B9

Tritanopia (blue-blind)

#008A92

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #307bba;
/* rgb */ color: rgb(48, 123, 186);
/* oklch */ color: oklch(56.7% 0.122 247.5);

Tailwind

colors: {
  custom: {
    50: '#7ba0cf',
    500: '#307bba',
    950: '#000000',
  },
}

SCSS

$custom: #307bba;
$custom-light: #7ba0cf;
$custom-dark: #000000;

JSON

{
  "hex": "#307bba",
  "rgb": {
    "r": 48,
    "g": 123,
    "b": 186
  },
  "hsl": {
    "h": 207.391,
    "s": 58.974,
    "l": 45.882
  },
  "oklch": {
    "l": 0.56659,
    "c": 0.12207,
    "h": 247.5
  },
  "luminance": 0.18339
}

Semantic roles & 50–950 ramp

primary

#307BBA

secondary

#C9A07D

accent

#8D46E2

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #307BBA

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

Preview Lab → · Contrast checker → · Palette generator →