#2B307C#2B307C

#2B307C is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.4% C 0.127 H 275.0°. Best body text is #FFFFFF at 11.56:1 contrast (WCAG AA passes).

Color values

HEX	#2B307C
RGB	rgb(43, 48, 124)
HSL	hsl(236, 49%, 33%)
HSV	hsv(236, 65%, 49%)
CMYK	cmyk(65.3%, 61.3%, 0%, 51.4%)
CIE-LAB	lab(23.94, 23.44, -43.97)
CIE-LCH	lch(23.94, 49.83, 298.06°)
OKLab	oklab(35.37% 0.011 -0.1265)
OKLCH	oklch(35.37% 0.127 275)
XYZ	xyz(5.6901, 4.0823, 19.5530)
Luminance	0.0408 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B307C #7C772B

analogous

#2B597C #2B307C #4E2B7C

triadic

#2B307C #7C2B30 #307C2B

tetradic

#2B307C #7C2B59 #7C772B #2B7C4E

square

#2B307C #7C2B59 #7C772B #2B7C4E

split-complementary

#2B307C #7C4E2B #597C2B

monochromatic

#0B0D21 #1B1E4F #2B307C #3B42A9 #5B62C6

Accessibility & contrast

On white

11.56

#2B307C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#2B307C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B307C

11.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B307C	#FFFFFF	#000000	##FFFFFF
##2B307C	1.00	11.56	1.82	11.56
#FFFFFF	11.56	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D7F

Deuteranopia (green-blind)

#00357A

Tritanopia (blue-blind)

#004351

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #2b307c;
/* rgb */ color: rgb(43, 48, 124);
/* oklch */ color: oklch(35.4% 0.127 275.0);

Tailwind

colors: {
  custom: {
    50: '#6e68a3',
    500: '#2b307c',
    950: '#000000',
  },
}

SCSS

$custom: #2b307c;
$custom-light: #6e68a3;
$custom-dark: #000000;

JSON

{
  "hex": "#2b307c",
  "rgb": {
    "r": 43,
    "g": 48,
    "b": 124
  },
  "hsl": {
    "h": 236.296,
    "s": 48.503,
    "l": 32.745
  },
  "oklch": {
    "l": 0.35367,
    "c": 0.12698,
    "h": 275
  },
  "luminance": 0.04083
}

Semantic roles & 50–950 ramp

primary

#2B307C

secondary

#ACA757

accent

#D050D8

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#08060F

muted

#7B7A7F

Preview Lab

Preview with #2B307C

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

Preview Lab → · Contrast checker → · Palette generator →