#2D309B#2D309B

#2D309B is a dark, vivid blue. Relative luminance 0.050; OKLCH L 38.4% C 0.169 H 273.8°. Best body text is #FFFFFF at 10.46:1 contrast (WCAG AA passes).

Color values

HEX	#2D309B
RGB	rgb(45, 48, 155)
HSL	hsl(238, 55%, 39%)
HSV	hsv(238, 71%, 61%)
CMYK	cmyk(71%, 69%, 0%, 39.2%)
CIE-LAB	lab(26.84, 34.95, -58.48)
CIE-LCH	lch(26.84, 68.13, 300.86°)
OKLab	oklab(38.38% 0.0113 -0.169)
OKLCH	oklch(38.38% 0.169 273.8)
XYZ	xyz(8.0536, 5.0376, 31.5519)
Luminance	0.0504 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2D309B #9B982D

analogous

#2D679B #2D309B #612D9B

triadic

#2D309B #9B2D30 #309B2D

tetradic

#2D309B #9B2D67 #9B982D #2D9B61

square

#2D309B #9B2D67 #9B982D #2D9B61

split-complementary

#2D309B #9B612D #679B2D

monochromatic

#11133C #1F216C #2D309B #3E42C7 #6E70D5

Accessibility & contrast

On white

10.46

#2D309B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#2D309B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2D309B

10.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2D309B	#FFFFFF	#000000	##FFFFFF
##2D309B	1.00	10.46	2.01	10.46
#FFFFFF	10.46	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00459E

Deuteranopia (green-blind)

#003A99

Tritanopia (blue-blind)

#004D61

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #2d309b;
/* rgb */ color: rgb(45, 48, 155);
/* oklch */ color: oklch(38.4% 0.169 273.8);

Tailwind

colors: {
  custom: {
    50: '#7669b9',
    500: '#2d309b',
    950: '#000000',
  },
}

SCSS

$custom: #2d309b;
$custom-light: #7669b9;
$custom-dark: #000000;

JSON

{
  "hex": "#2d309b",
  "rgb": {
    "r": 45,
    "g": 48,
    "b": 155
  },
  "hsl": {
    "h": 238.364,
    "s": 55,
    "l": 39.216
  },
  "oklch": {
    "l": 0.38379,
    "c": 0.16937,
    "h": 273.8
  },
  "luminance": 0.05038
}

Semantic roles & 50–950 ramp

primary

#2D309B

secondary

#BCBA68

accent

#DA49DE

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #2D309B

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

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