#2F306E#2F306E

#2F306E is a dark, moderate blue. Relative luminance 0.038; OKLCH L 34.5% C 0.105 H 278.7°. Best body text is #FFFFFF at 11.87:1 contrast (WCAG AA passes).

Color values

HEX	#2F306E
RGB	rgb(47, 48, 110)
HSL	hsl(239, 40%, 31%)
HSV	hsv(239, 57%, 43%)
CMYK	cmyk(57.3%, 56.4%, 0%, 56.9%)
CIE-LAB	lab(23.15, 19.14, -36.31)
CIE-LCH	lch(23.15, 41.05, 297.79°)
OKLab	oklab(34.51% 0.0158 -0.1038)
OKLCH	oklch(34.51% 0.105 278.7)
XYZ	xyz(5.0428, 3.8437, 15.2250)
Luminance	0.0384 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F306E #6E6D2F

analogous

#2F4F6E #2F306E #4D2F6E

triadic

#2F306E #6E2F30 #306E2F

tetradic

#2F306E #6E2F4F #6E6D2F #2F6E4D

square

#2F306E #6E2F4F #6E6D2F #2F6E4D

split-complementary

#2F306E #6E4D2F #4F6E2F

monochromatic

#0A0B18 #1D1D43 #2F306E #414399 #5D5FBA

Accessibility & contrast

On white

11.87

#2F306E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#2F306E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F306E

11.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F306E	#FFFFFF	#000000	##FFFFFF
##2F306E	1.00	11.87	1.77	11.87
#FFFFFF	11.87	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B3A70

Deuteranopia (green-blind)

#01356D

Tritanopia (blue-blind)

#113E4A

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #2f306e;
/* rgb */ color: rgb(47, 48, 110);
/* oklch */ color: oklch(34.5% 0.105 278.7);

Tailwind

colors: {
  custom: {
    50: '#6d6898',
    500: '#2f306e',
    950: '#000000',
  },
}

SCSS

$custom: #2f306e;
$custom-light: #6d6898;
$custom-dark: #000000;

JSON

{
  "hex": "#2f306e",
  "rgb": {
    "r": 47,
    "g": 48,
    "b": 110
  },
  "hsl": {
    "h": 239.048,
    "s": 40.127,
    "l": 30.784
  },
  "oklch": {
    "l": 0.34508,
    "c": 0.10505,
    "h": 278.7
  },
  "luminance": 0.03844
}

Semantic roles & 50–950 ramp

primary

#2F306E

secondary

#9F9E59

accent

#CE58D0

background

#F6F6F9

surface

#ECEBF2

border

#C7C6CC

text

#07060E

muted

#7A7A7E

Preview Lab

Preview with #2F306E

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

Preview Lab → · Contrast checker → · Palette generator →