#308BBB#308BBB

#308BBB is a mid, moderate cyan. Relative luminance 0.227; OKLCH L 60.5% C 0.111 H 236.2°. Best body text is #000000 at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#308BBB
RGB	rgb(48, 139, 187)
HSL	hsl(201, 59%, 46%)
HSV	hsv(201, 74%, 73%)
CMYK	cmyk(74.3%, 25.7%, 0%, 26.7%)
CIE-LAB	lab(54.74, -10.44, -32.70)
CIE-LCH	lch(54.74, 34.33, 252.30°)
OKLab	oklab(60.5% -0.0618 -0.0922)
OKLCH	oklch(60.5% 0.111 236.2)
XYZ	xyz(19.4176, 22.6792, 50.3582)
Luminance	0.2268 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#308BBB #BB6030

analogous

#30BBA5 #308BBB #3046BB

triadic

#308BBB #BB308B #8BBB30

tetradic

#308BBB #A530BB #BB6030 #46BB30

square

#308BBB #A530BB #BB6030 #46BB30

split-complementary

#308BBB #BB3046 #BBA530

monochromatic

#17435A #23678A #308BBB #55A8D3 #86C1E0

Accessibility & contrast

On white

3.79

#308BBB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.54

#308BBB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #308BBB

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##308BBB	#FFFFFF	#000000	##000000
##308BBB	1.00	3.79	5.54	5.54
#FFFFFF	3.79	1.00	21.00	21.00
#000000	5.54	21.00	1.00	1.00
##000000	5.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#748ABD

Deuteranopia (green-blind)

#617DBA

Tritanopia (blue-blind)

#00979B

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #308bbb;
/* rgb */ color: rgb(48, 139, 187);
/* oklch */ color: oklch(60.5% 0.111 236.2);

Tailwind

colors: {
  custom: {
    50: '#7baccf',
    500: '#308bbb',
    950: '#000000',
  },
}

SCSS

$custom: #308bbb;
$custom-light: #7baccf;
$custom-dark: #000000;

JSON

{
  "hex": "#308bbb",
  "rgb": {
    "r": 48,
    "g": 139,
    "b": 187
  },
  "hsl": {
    "h": 200.719,
    "s": 59.149,
    "l": 46.078
  },
  "oklch": {
    "l": 0.60502,
    "c": 0.11098,
    "h": 236.2
  },
  "luminance": 0.22681
}

Semantic roles & 50–950 ramp

primary

#308BBB

secondary

#C9987D

accent

#7C45E2

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B1014

muted

#7C7F82

Preview Lab

Preview with #308BBB

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

Preview Lab → · Contrast checker → · Palette generator →