#2F308F#2F308F

#2F308F is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.4% C 0.153 H 275.6°. Best body text is #FFFFFF at 10.82:1 contrast (WCAG AA passes).

Color values

HEX	#2F308F
RGB	rgb(47, 48, 143)
HSL	hsl(239, 51%, 37%)
HSV	hsv(239, 67%, 56%)
CMYK	cmyk(67.1%, 66.4%, 0%, 43.9%)
CIE-LAB	lab(25.86, 30.97, -52.71)
CIE-LCH	lch(25.86, 61.13, 300.44°)
OKLab	oklab(37.36% 0.015 -0.152)
OKLCH	oklch(37.36% 0.153 275.6)
XYZ	xyz(7.1855, 4.7008, 26.5100)
Luminance	0.0470 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F308F #8F8E2F

analogous

#2F608F #2F308F #5E2F8F

triadic

#2F308F #8F2F30 #308F2F

tetradic

#2F308F #8F2F60 #8F8E2F #2F8F5E

square

#2F308F #8F2F60 #8F8E2F #2F8F5E

split-complementary

#2F308F #8F5E2F #608F2F

monochromatic

#111133 #202161 #2F308F #3E3FBD #6A6BCE

Accessibility & contrast

On white

10.82

#2F308F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#2F308F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F308F

10.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F308F	#FFFFFF	#000000	##FFFFFF
##2F308F	1.00	10.82	1.94	10.82
#FFFFFF	10.82	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004292

Deuteranopia (green-blind)

#00398D

Tritanopia (blue-blind)

#00495B

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #2f308f;
/* rgb */ color: rgb(47, 48, 143);
/* oklch */ color: oklch(37.4% 0.153 275.6);

Tailwind

colors: {
  custom: {
    50: '#7468b1',
    500: '#2f308f',
    950: '#000000',
  },
}

SCSS

$custom: #2f308f;
$custom-light: #7468b1;
$custom-dark: #000000;

JSON

{
  "hex": "#2f308f",
  "rgb": {
    "r": 47,
    "g": 48,
    "b": 143
  },
  "hsl": {
    "h": 239.375,
    "s": 50.526,
    "l": 37.255
  },
  "oklch": {
    "l": 0.37364,
    "c": 0.15277,
    "h": 275.6
  },
  "luminance": 0.04701
}

Semantic roles & 50–950 ramp

primary

#2F308F

secondary

#B5B465

accent

#D94EDA

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090611

muted

#7B7A80

Preview Lab

Preview with #2F308F

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

Preview Lab → · Contrast checker → · Palette generator →