#2A307B#2A307B

#2A307B is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.2% C 0.126 H 274.5°. Best body text is #FFFFFF at 11.62:1 contrast (WCAG AA passes).

Color values

HEX	#2A307B
RGB	rgb(42, 48, 123)
HSL	hsl(236, 49%, 32%)
HSV	hsv(236, 66%, 48%)
CMYK	cmyk(65.9%, 61%, 0%, 51.8%)
CIE-LAB	lab(23.79, 22.89, -43.59)
CIE-LCH	lch(23.79, 49.23, 297.71°)
OKLab	oklab(35.21% 0.0098 -0.1254)
OKLCH	oklch(35.21% 0.126 274.5)
XYZ	xyz(5.5858, 4.0357, 19.2197)
Luminance	0.0404 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A307B #7B752A

analogous

#2A587B #2A307B #4D2A7B

triadic

#2A307B #7B2A30 #307B2A

tetradic

#2A307B #7B2A58 #7B752A #2A7B4D

square

#2A307B #7B2A58 #7B752A #2A7B4D

split-complementary

#2A307B #7B4D2A #587B2A

monochromatic

#0B0C20 #1A1E4D #2A307B #3A42A9 #5961C6

Accessibility & contrast

On white

11.62

#2A307B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#2A307B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A307B

11.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A307B	#FFFFFF	#000000	##FFFFFF
##2A307B	1.00	11.62	1.81	11.62
#FFFFFF	11.62	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C7E

Deuteranopia (green-blind)

#003579

Tritanopia (blue-blind)

#004250

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #2a307b;
/* rgb */ color: rgb(42, 48, 123);
/* oklch */ color: oklch(35.2% 0.126 274.5);

Tailwind

colors: {
  custom: {
    50: '#6d68a2',
    500: '#2a307b',
    950: '#000000',
  },
}

SCSS

$custom: #2a307b;
$custom-light: #6d68a2;
$custom-dark: #000000;

JSON

{
  "hex": "#2a307b",
  "rgb": {
    "r": 42,
    "g": 48,
    "b": 123
  },
  "hsl": {
    "h": 235.556,
    "s": 49.091,
    "l": 32.353
  },
  "oklch": {
    "l": 0.3521,
    "c": 0.12578,
    "h": 274.5
  },
  "luminance": 0.04036
}

Semantic roles & 50–950 ramp

primary

#2A307B

secondary

#ACA555

accent

#CE4FD9

background

#F6F6FA

surface

#ECEBF3

border

#C7C6CD

text

#08060F

muted

#7A7A7F

Preview Lab

Preview with #2A307B

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

Preview Lab → · Contrast checker → · Palette generator →