#2A283A#2A283A

#2A283A is a dark, muted blue. Relative luminance 0.023; OKLCH L 28.7% C 0.033 H 289.3°. Best body text is #FFFFFF at 14.35:1 contrast (WCAG AA passes).

Color values

HEX	#2A283A
RGB	rgb(42, 40, 58)
HSL	hsl(247, 18%, 19%)
HSV	hsv(247, 31%, 23%)
CMYK	cmyk(27.6%, 31%, 0%, 77.3%)
CIE-LAB	lab(17.06, 5.74, -11.20)
CIE-LCH	lch(17.06, 12.59, 297.11°)
OKLab	oklab(28.72% 0.0108 -0.0309)
OKLCH	oklch(28.72% 0.033 289.3)
XYZ	xyz(2.4772, 2.3153, 4.3185)
Luminance	0.0232 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A283A #383A28

analogous

#282F3A #2A283A #33283A

triadic

#2A283A #3A2A28 #283A2A

tetradic

#2A283A #3A282F #383A28 #283A33

square

#2A283A #3A282F #383A28 #283A33

split-complementary

#2A283A #3A3328 #2F3A28

monochromatic

#0D0C12 #100F16 #2A283A #44415E #5E5A82

Accessibility & contrast

On white

14.35

#2A283A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#2A283A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A283A

14.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A283A	#FFFFFF	#000000	##FFFFFF
##2A283A	1.00	14.35	1.46	14.35
#FFFFFF	14.35	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#232A3B

Deuteranopia (green-blind)

#232A3A

Tritanopia (blue-blind)

#272B2E

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #2a283a;
/* rgb */ color: rgb(42, 40, 58);
/* oklch */ color: oklch(28.7% 0.033 289.3);

Tailwind

colors: {
  custom: {
    50: '#646170',
    500: '#2a283a',
    950: '#000000',
  },
}

SCSS

$custom: #2a283a;
$custom-light: #646170;
$custom-dark: #000000;

JSON

{
  "hex": "#2a283a",
  "rgb": {
    "r": 42,
    "g": 40,
    "b": 58
  },
  "hsl": {
    "h": 246.667,
    "s": 18.367,
    "l": 19.216
  },
  "oklch": {
    "l": 0.28719,
    "c": 0.0327,
    "h": 289.3
  },
  "luminance": 0.02315
}

Semantic roles & 50–950 ramp

primary

#2A283A

secondary

#686B53

accent

#BB6DB2

background

#F5F5F6

surface

#EAE9EC

border

#C6C5C7

text

#050507

muted

#79797A

Preview Lab

Preview with #2A283A

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

Preview Lab → · Contrast checker → · Palette generator →