#2F3FB6#2F3FB6

#2F3FB6 is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.7% C 0.187 H 270.4°. Best body text is #FFFFFF at 8.38:1 contrast (WCAG AA passes).

Color values

HEX	#2F3FB6
RGB	rgb(47, 63, 182)
HSL	hsl(233, 59%, 45%)
HSV	hsv(233, 74%, 71%)
CMYK	cmyk(74.2%, 65.4%, 0%, 28.6%)
CIE-LAB	lab(33.00, 35.32, -64.61)
CIE-LCH	lch(33.00, 73.63, 298.66°)
OKLab	oklab(43.65% 0.0013 -0.1868)
OKLCH	oklch(43.65% 0.187 270.4)
XYZ	xyz(11.3904, 7.5356, 45.1011)
Luminance	0.0754 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3FB6 #B6A62F

analogous

#2F82B6 #2F3FB6 #632FB6

triadic

#2F3FB6 #B62F3F #3FB62F

tetradic

#2F3FB6 #B62F82 #B6A62F #2FB663

square

#2F3FB6 #B62F82 #B6A62F #2FB663

split-complementary

#2F3FB6 #B6632F #82B62F

monochromatic

#161D55 #222E85 #2F3FB6 #5060D2 #818CDE

Accessibility & contrast

On white

8.38

#2F3FB6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#2F3FB6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3FB6

8.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3FB6	#FFFFFF	#000000	##FFFFFF
##2F3FB6	1.00	8.38	2.51	8.38
#FFFFFF	8.38	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054BA

Deuteranopia (green-blind)

#0047B4

Tritanopia (blue-blind)

#005E75

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #2f3fb6;
/* rgb */ color: rgb(47, 63, 182);
/* oklch */ color: oklch(43.7% 0.187 270.4);

Tailwind

colors: {
  custom: {
    50: '#7c74cd',
    500: '#2f3fb6',
    950: '#000000',
  },
}

SCSS

$custom: #2f3fb6;
$custom-light: #7c74cd;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3fb6",
  "rgb": {
    "r": 47,
    "g": 63,
    "b": 182
  },
  "hsl": {
    "h": 232.889,
    "s": 58.952,
    "l": 44.902
  },
  "oklch": {
    "l": 0.43651,
    "c": 0.18682,
    "h": 270.4
  },
  "luminance": 0.07537
}

Semantic roles & 50–950 ramp

primary

#2F3FB6

secondary

#C7BE79

accent

#D046E2

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0814

muted

#7C7B82

Preview Lab

Preview with #2F3FB6

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

Preview Lab → · Contrast checker → · Palette generator →