#2F339B#2F339B

#2F339B is a dark, vivid blue. Relative luminance 0.053; OKLCH L 39.0% C 0.165 H 274.0°. Best body text is #FFFFFF at 10.16:1 contrast (WCAG AA passes).

Color values

HEX	#2F339B
RGB	rgb(47, 51, 155)
HSL	hsl(238, 53%, 40%)
HSV	hsv(238, 70%, 61%)
CMYK	cmyk(69.7%, 67.1%, 0%, 39.2%)
CIE-LAB	lab(27.68, 33.31, -57.11)
CIE-LCH	lch(27.68, 66.11, 300.25°)
OKLab	oklab(39.02% 0.0116 -0.1649)
OKLCH	oklch(39.02% 0.165 274)
XYZ	xyz(8.2705, 5.3378, 31.5984)
Luminance	0.0534 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F339B #9B972F

analogous

#2F699B #2F339B #612F9B

triadic

#2F339B #9B2F33 #339B2F

tetradic

#2F339B #9B2F69 #9B972F #2F9B61

square

#2F339B #9B2F69 #9B972F #2F9B61

split-complementary

#2F339B #9B612F #699B2F

monochromatic

#13143D #21246C #2F339B #4247C6 #7174D4

Accessibility & contrast

On white

10.16

#2F339B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#2F339B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F339B

10.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F339B	#FFFFFF	#000000	##FFFFFF
##2F339B	1.00	10.16	2.07	10.16
#FFFFFF	10.16	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00469E

Deuteranopia (green-blind)

#003C99

Tritanopia (blue-blind)

#004E62

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #2f339b;
/* rgb */ color: rgb(47, 51, 155);
/* oklch */ color: oklch(39.0% 0.165 274.0);

Tailwind

colors: {
  custom: {
    50: '#776bb9',
    500: '#2f339b',
    950: '#000000',
  },
}

SCSS

$custom: #2f339b;
$custom-light: #776bb9;
$custom-dark: #000000;

JSON

{
  "hex": "#2f339b",
  "rgb": {
    "r": 47,
    "g": 51,
    "b": 155
  },
  "hsl": {
    "h": 237.778,
    "s": 53.465,
    "l": 39.608
  },
  "oklch": {
    "l": 0.39019,
    "c": 0.16532,
    "h": 274
  },
  "luminance": 0.05339
}

Semantic roles & 50–950 ramp

primary

#2F339B

secondary

#BBB86A

accent

#D74BDD

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #2F339B

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

Preview Lab → · Contrast checker → · Palette generator →