#307AB5#307AB5

#307AB5 is a mid, moderate cyan. Relative luminance 0.179; OKLCH L 56.1% C 0.117 H 246.2°. Best body text is #FFFFFF at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#307AB5
RGB	rgb(48, 122, 181)
HSL	hsl(207, 58%, 45%)
HSV	hsv(207, 73%, 71%)
CMYK	cmyk(73.5%, 32.6%, 0%, 29%)
CIE-LAB	lab(49.35, -2.68, -37.71)
CIE-LCH	lch(49.35, 37.80, 265.94°)
OKLab	oklab(56.14% -0.0472 -0.1069)
OKLCH	oklch(56.14% 0.117 246.2)
XYZ	xyz(16.5158, 17.8818, 46.2882)
Luminance	0.1788 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307AB5 #B56B30

analogous

#30B5AE #307AB5 #3037B5

triadic

#307AB5 #B5307A #7AB530

tetradic

#307AB5 #AE30B5 #B56B30 #37B530

square

#307AB5 #AE30B5 #B56B30 #37B530

split-complementary

#307AB5 #B53037 #B5AE30

monochromatic

#163954 #235985 #307AB5 #5198D1 #82B5DE

Accessibility & contrast

On white

4.59

#307AB5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.58

#307AB5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #307AB5

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307AB5	#FFFFFF	#000000	##FFFFFF
##307AB5	1.00	4.59	4.58	4.59
#FFFFFF	4.59	1.00	21.00	1.00
#000000	4.58	21.00	1.00	21.00
##FFFFFF	4.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F7CB8

Deuteranopia (green-blind)

#4C70B4

Tritanopia (blue-blind)

#00888F

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #307ab5;
/* rgb */ color: rgb(48, 122, 181);
/* oklch */ color: oklch(56.1% 0.117 246.2);

Tailwind

colors: {
  custom: {
    50: '#7aa0cb',
    500: '#307ab5',
    950: '#000000',
  },
}

SCSS

$custom: #307ab5;
$custom-light: #7aa0cb;
$custom-dark: #000000;

JSON

{
  "hex": "#307ab5",
  "rgb": {
    "r": 48,
    "g": 122,
    "b": 181
  },
  "hsl": {
    "h": 206.617,
    "s": 58.079,
    "l": 44.902
  },
  "oklch": {
    "l": 0.56143,
    "c": 0.11687,
    "h": 246.2
  },
  "luminance": 0.17884
}

Semantic roles & 50–950 ramp

primary

#307AB5

secondary

#C79C7A

accent

#8B46E1

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #307AB5

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

Preview Lab → · Contrast checker → · Palette generator →