#307B8B#307B8B

#307B8B is a mid, moderate cyan. Relative luminance 0.167; OKLCH L 54.3% C 0.077 H 214.2°. Best body text is #FFFFFF at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#307B8B
RGB	rgb(48, 123, 139)
HSL	hsl(191, 49%, 37%)
HSV	hsv(191, 65%, 55%)
CMYK	cmyk(65.5%, 11.5%, 0%, 45.5%)
CIE-LAB	lab(47.82, -17.76, -15.54)
CIE-LCH	lch(47.82, 23.59, 221.18°)
OKLab	oklab(54.32% -0.0634 -0.0432)
OKLCH	oklch(54.32% 0.077 214.2)
XYZ	xyz(12.9602, 16.6570, 26.9532)
Luminance	0.1666 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307B8B #8B4030

analogous

#308B6E #307B8B #304E8B

triadic

#307B8B #8B307B #7B8B30

tetradic

#307B8B #6E308B #8B4030 #4E8B30

square

#307B8B #6E308B #8B4030 #4E8B30

split-complementary

#307B8B #8B304E #8B6E30

monochromatic

#112A30 #20535E #307B8B #40A3B8 #6ABACC

Accessibility & contrast

On white

4.85

#307B8B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.33

#307B8B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #307B8B

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307B8B	#FFFFFF	#000000	##FFFFFF
##307B8B	1.00	4.85	4.33	4.85
#FFFFFF	4.85	1.00	21.00	1.00
#000000	4.33	21.00	1.00	21.00
##FFFFFF	4.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F778C

Deuteranopia (green-blind)

#626D8B

Tritanopia (blue-blind)

#008180

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #307b8b;
/* rgb */ color: rgb(48, 123, 139);
/* oklch */ color: oklch(54.3% 0.077 214.2);

Tailwind

colors: {
  custom: {
    50: '#73a1ac',
    500: '#307b8b',
    950: '#000000',
  },
}

SCSS

$custom: #307b8b;
$custom-light: #73a1ac;
$custom-dark: #000000;

JSON

{
  "hex": "#307b8b",
  "rgb": {
    "r": 48,
    "g": 123,
    "b": 139
  },
  "hsl": {
    "h": 190.549,
    "s": 48.663,
    "l": 36.667
  },
  "oklch": {
    "l": 0.54323,
    "c": 0.07671,
    "h": 214.2
  },
  "luminance": 0.16658
}

Semantic roles & 50–950 ramp

primary

#307B8B

secondary

#B37264

accent

#6850D8

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#090F10

muted

#7B7E7F

Preview Lab

Preview with #307B8B

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

Preview Lab → · Contrast checker → · Palette generator →