#2F308E#2F308E

#2F308E is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.3% C 0.151 H 275.7°. Best body text is #FFFFFF at 10.86:1 contrast (WCAG AA passes).

Color values

HEX	#2F308E
RGB	rgb(47, 48, 142)
HSL	hsl(239, 50%, 37%)
HSV	hsv(239, 67%, 56%)
CMYK	cmyk(66.9%, 66.2%, 0%, 44.3%)
CIE-LAB	lab(25.77, 30.61, -52.23)
CIE-LCH	lch(25.77, 60.54, 300.37°)
OKLab	oklab(37.27% 0.0151 -0.1506)
OKLCH	oklch(37.27% 0.151 275.7)
XYZ	xyz(7.1101, 4.6706, 26.1128)
Luminance	0.0467 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F308E #8E8D2F

analogous

#2F608E #2F308E #5D2F8E

triadic

#2F308E #8E2F30 #308E2F

tetradic

#2F308E #8E2F60 #8E8D2F #2F8E5D

square

#2F308E #8E2F60 #8E8D2F #2F8E5D

split-complementary

#2F308E #8E5D2F #608E2F

monochromatic

#111132 #202060 #2F308E #3E40BC #6A6BCE

Accessibility & contrast

On white

10.86

#2F308E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#2F308E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F308E

10.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F308E	#FFFFFF	#000000	##FFFFFF
##2F308E	1.00	10.86	1.93	10.86
#FFFFFF	10.86	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004191

Deuteranopia (green-blind)

#00398C

Tritanopia (blue-blind)

#00485A

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #2f308e;
/* rgb */ color: rgb(47, 48, 142);
/* oklch */ color: oklch(37.3% 0.151 275.7);

Tailwind

colors: {
  custom: {
    50: '#7468b0',
    500: '#2f308e',
    950: '#000000',
  },
}

SCSS

$custom: #2f308e;
$custom-light: #7468b0;
$custom-dark: #000000;

JSON

{
  "hex": "#2f308e",
  "rgb": {
    "r": 47,
    "g": 48,
    "b": 142
  },
  "hsl": {
    "h": 239.368,
    "s": 50.265,
    "l": 37.059
  },
  "oklch": {
    "l": 0.37271,
    "c": 0.1514,
    "h": 275.7
  },
  "luminance": 0.04671
}

Semantic roles & 50–950 ramp

primary

#2F308E

secondary

#B5B464

accent

#D84EDA

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#090611

muted

#7B7A80

Preview Lab

Preview with #2F308E

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

Preview Lab → · Contrast checker → · Palette generator →