#2F23B5#2F23B5

#2F23B5 is a dark, highly saturated blue. Relative luminance 0.051; OKLCH L 39.4% C 0.214 H 274.1°. Best body text is #FFFFFF at 10.35:1 contrast (WCAG AA passes).

Color values

HEX	#2F23B5
RGB	rgb(47, 35, 181)
HSL	hsl(245, 68%, 42%)
HSV	hsv(245, 81%, 71%)
CMYK	cmyk(74%, 80.7%, 0%, 29%)
CIE-LAB	lab(27.13, 50.99, -73.68)
CIE-LCH	lch(27.13, 89.60, 304.68°)
OKLab	oklab(39.43% 0.0152 -0.2131)
OKLCH	oklch(39.43% 0.214 274.1)
XYZ	xyz(10.1110, 5.1416, 44.1667)
Luminance	0.0514 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F23B5 #A9B523

analogous

#2360B5 #2F23B5 #7823B5

triadic

#2F23B5 #B52F23 #23B52F

tetradic

#2F23B5 #B52360 #A9B523 #23B578

square

#2F23B5 #B52360 #A9B523 #23B578

split-complementary

#2F23B5 #B57823 #60B523

monochromatic

#140F4E #221982 #2F23B5 #493CD9 #796FE3

Accessibility & contrast

On white

10.35

#2F23B5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#2F23B5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F23B5

10.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F23B5	#FFFFFF	#000000	##FFFFFF
##2F23B5	1.00	10.35	2.03	10.35
#FFFFFF	10.35	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047B9

Deuteranopia (green-blind)

#0039B3

Tritanopia (blue-blind)

#00516D

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #2f23b5;
/* rgb */ color: rgb(47, 35, 181);
/* oklch */ color: oklch(39.4% 0.214 274.1);

Tailwind

colors: {
  custom: {
    50: '#7e62cd',
    500: '#2f23b5',
    950: '#000000',
  },
}

SCSS

$custom: #2f23b5;
$custom-light: #7e62cd;
$custom-dark: #000000;

JSON

{
  "hex": "#2f23b5",
  "rgb": {
    "r": 47,
    "g": 35,
    "b": 181
  },
  "hsl": {
    "h": 244.932,
    "s": 67.593,
    "l": 42.353
  },
  "oklch": {
    "l": 0.39434,
    "c": 0.21365,
    "h": 274.1
  },
  "luminance": 0.05143
}

Semantic roles & 50–950 ramp

primary

#2F23B5

secondary

#C2CA6A

accent

#EA3DDC

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0514

muted

#7D7A82

Preview Lab

Preview with #2F23B5

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

Preview Lab → · Contrast checker → · Palette generator →