#2F307D#2F307D

#2F307D is a dark, vivid blue. Relative luminance 0.042; OKLCH L 35.7% C 0.127 H 277.2°. Best body text is #FFFFFF at 11.41:1 contrast (WCAG AA passes).

Color values

HEX	#2F307D
RGB	rgb(47, 48, 125)
HSL	hsl(239, 45%, 34%)
HSV	hsv(239, 62%, 49%)
CMYK	cmyk(62.4%, 61.6%, 0%, 51%)
CIE-LAB	lab(24.32, 24.52, -43.98)
CIE-LCH	lch(24.32, 50.36, 299.15°)
OKLab	oklab(35.75% 0.016 -0.1264)
OKLCH	oklch(35.75% 0.127 277.2)
XYZ	xyz(5.9297, 4.1985, 19.8960)
Luminance	0.0420 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F307D #7D7C2F

analogous

#2F577D #2F307D #552F7D

triadic

#2F307D #7D2F30 #307D2F

tetradic

#2F307D #7D2F57 #7D7C2F #2F7D55

square

#2F307D #7D2F57 #7D7C2F #2F7D55

split-complementary

#2F307D #7D552F #577D2F

monochromatic

#0E0E24 #1E1F51 #2F307D #4041A9 #6264C4

Accessibility & contrast

On white

11.41

#2F307D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#2F307D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F307D

11.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F307D	#FFFFFF	#000000	##FFFFFF
##2F307D	1.00	11.41	1.84	11.41
#FFFFFF	11.41	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D80

Deuteranopia (green-blind)

#00377B

Tritanopia (blue-blind)

#004351

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #2f307d;
/* rgb */ color: rgb(47, 48, 125);
/* oklch */ color: oklch(35.7% 0.127 277.2);

Tailwind

colors: {
  custom: {
    50: '#7068a3',
    500: '#2f307d',
    950: '#000000',
  },
}

SCSS

$custom: #2f307d;
$custom-light: #7068a3;
$custom-dark: #000000;

JSON

{
  "hex": "#2f307d",
  "rgb": {
    "r": 47,
    "g": 48,
    "b": 125
  },
  "hsl": {
    "h": 239.231,
    "s": 45.349,
    "l": 33.725
  },
  "oklch": {
    "l": 0.35747,
    "c": 0.12742,
    "h": 277.2
  },
  "luminance": 0.04199
}

Semantic roles & 50–950 ramp

primary

#2F307D

secondary

#ABAA5D

accent

#D353D5

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#08060F

muted

#7B7A7F

Preview Lab

Preview with #2F307D

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

Preview Lab → · Contrast checker → · Palette generator →