#282957#282957

#282957 is a dark, moderate blue. Relative luminance 0.027; OKLCH L 30.6% C 0.081 H 279.5°. Best body text is #FFFFFF at 13.59:1 contrast (WCAG AA passes).

Color values

HEX	#282957
RGB	rgb(40, 41, 87)
HSL	hsl(239, 37%, 25%)
HSV	hsv(239, 54%, 34%)
CMYK	cmyk(54%, 52.9%, 0%, 65.9%)
CIE-LAB	lab(18.91, 14.09, -28.09)
CIE-LCH	lch(18.91, 31.43, 296.64°)
OKLab	oklab(30.64% 0.0134 -0.0799)
OKLCH	oklch(30.64% 0.081 279.5)
XYZ	xyz(3.3878, 2.7249, 9.3624)
Luminance	0.0272 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#282957 #575628

analogous

#284157 #282957 #3E2857

triadic

#282957 #572829 #295728

tetradic

#282957 #572841 #575628 #28573E

square

#282957 #572841 #575628 #28573E

split-complementary

#282957 #573E28 #415728

monochromatic

#0A0A15 #15152D #282957 #3B3D81 #4F51AB

Accessibility & contrast

On white

13.59

#282957 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#282957 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #282957

13.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##282957	#FFFFFF	#000000	##FFFFFF
##282957	1.00	13.59	1.55	13.59
#FFFFFF	13.59	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#143059

Deuteranopia (green-blind)

#102C56

Tritanopia (blue-blind)

#16333B

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #282957;
/* rgb */ color: rgb(40, 41, 87);
/* oklch */ color: oklch(30.6% 0.081 279.5);

Tailwind

colors: {
  custom: {
    50: '#666287',
    500: '#282957',
    950: '#000000',
  },
}

SCSS

$custom: #282957;
$custom-light: #666287;
$custom-dark: #000000;

JSON

{
  "hex": "#282957",
  "rgb": {
    "r": 40,
    "g": 41,
    "b": 87
  },
  "hsl": {
    "h": 238.723,
    "s": 37.008,
    "l": 24.902
  },
  "oklch": {
    "l": 0.30643,
    "c": 0.08107,
    "h": 279.5
  },
  "luminance": 0.02725
}

Semantic roles & 50–950 ramp

primary

#282957

secondary

#8A8951

accent

#CB5BCD

background

#F6F5F8

surface

#EBEAEF

border

#C6C6CA

text

#06050B

muted

#7A797C

Preview Lab

Preview with #282957

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

Preview Lab → · Contrast checker → · Palette generator →