#2F23B7#2F23B7

#2F23B7 is a dark, highly saturated blue. Relative luminance 0.052; OKLCH L 39.7% C 0.216 H 273.9°. Best body text is #FFFFFF at 10.27:1 contrast (WCAG AA passes).

Color values

HEX	#2F23B7
RGB	rgb(47, 35, 183)
HSL	hsl(245, 68%, 43%)
HSV	hsv(245, 81%, 72%)
CMYK	cmyk(74.3%, 80.9%, 0%, 28.2%)
CIE-LAB	lab(27.36, 51.60, -74.49)
CIE-LCH	lch(27.36, 90.62, 304.71°)
OKLab	oklab(39.66% 0.0147 -0.2155)
OKLCH	oklch(39.66% 0.216 273.9)
XYZ	xyz(10.3177, 5.2242, 45.2552)
Luminance	0.0522 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F23B7 #ABB723

analogous

#2361B7 #2F23B7 #7923B7

triadic

#2F23B7 #B72F23 #23B72F

tetradic

#2F23B7 #B72361 #ABB723 #23B779

square

#2F23B7 #B72361 #ABB723 #23B779

split-complementary

#2F23B7 #B77923 #61B723

monochromatic

#150F50 #221984 #2F23B7 #4A3DDA #7A71E4

Accessibility & contrast

On white

10.27

#2F23B7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#2F23B7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F23B7

10.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F23B7	#FFFFFF	#000000	##FFFFFF
##2F23B7	1.00	10.27	2.05	10.27
#FFFFFF	10.27	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047BB

Deuteranopia (green-blind)

#003AB4

Tritanopia (blue-blind)

#00516E

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #2f23b7;
/* rgb */ color: rgb(47, 35, 183);
/* oklch */ color: oklch(39.7% 0.216 273.9);

Tailwind

colors: {
  custom: {
    50: '#7e62ce',
    500: '#2f23b7',
    950: '#000000',
  },
}

SCSS

$custom: #2f23b7;
$custom-light: #7e62ce;
$custom-dark: #000000;

JSON

{
  "hex": "#2f23b7",
  "rgb": {
    "r": 47,
    "g": 35,
    "b": 183
  },
  "hsl": {
    "h": 244.865,
    "s": 67.89,
    "l": 42.745
  },
  "oklch": {
    "l": 0.3966,
    "c": 0.21596,
    "h": 273.9
  },
  "luminance": 0.05225
}

Semantic roles & 50–950 ramp

primary

#2F23B7

secondary

#C3CA6B

accent

#EB3DDD

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0514

muted

#7D7A82

Preview Lab

Preview with #2F23B7

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

Preview Lab → · Contrast checker → · Palette generator →