#283157#283157

#283157 is a dark, moderate blue. Relative luminance 0.033; OKLCH L 32.5% C 0.069 H 272.0°. Best body text is #FFFFFF at 12.60:1 contrast (WCAG AA passes).

Color values

HEX	#283157
RGB	rgb(40, 49, 87)
HSL	hsl(229, 37%, 25%)
HSV	hsv(229, 54%, 34%)
CMYK	cmyk(54%, 43.7%, 0%, 65.9%)
CIE-LAB	lab(21.34, 8.40, -24.21)
CIE-LCH	lch(21.34, 25.63, 289.13°)
OKLab	oklab(32.5% 0.0024 -0.0685)
OKLCH	oklch(32.5% 0.069 272)
XYZ	xyz(3.6931, 3.3356, 9.4642)
Luminance	0.0334 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283157 #574E28

analogous

#284857 #283157 #372857

triadic

#283157 #572831 #315728

tetradic

#283157 #572848 #574E28 #285737

square

#283157 #572848 #574E28 #285737

split-complementary

#283157 #573728 #485728

monochromatic

#0A0C15 #15192D #283157 #3B4981 #4F60AB

Accessibility & contrast

On white

12.60

#283157 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#283157 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283157

12.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283157	#FFFFFF	#000000	##FFFFFF
##283157	1.00	12.60	1.67	12.60
#FFFFFF	12.60	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#223558

Deuteranopia (green-blind)

#1D3156

Tritanopia (blue-blind)

#15393F

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #283157;
/* rgb */ color: rgb(40, 49, 87);
/* oklch */ color: oklch(32.5% 0.069 272.0);

Tailwind

colors: {
  custom: {
    50: '#656886',
    500: '#283157',
    950: '#000000',
  },
}

SCSS

$custom: #283157;
$custom-light: #656886;
$custom-dark: #000000;

JSON

{
  "hex": "#283157",
  "rgb": {
    "r": 40,
    "g": 49,
    "b": 87
  },
  "hsl": {
    "h": 228.511,
    "s": 37.008,
    "l": 24.902
  },
  "oklch": {
    "l": 0.32497,
    "c": 0.06856,
    "h": 272
  },
  "luminance": 0.03336
}

Semantic roles & 50–950 ramp

primary

#283157

secondary

#8A7F51

accent

#B75BCD

background

#F6F6F8

surface

#EBEBEF

border

#C6C6CA

text

#06060B

muted

#7A7A7C

Preview Lab

Preview with #283157

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

Preview Lab → · Contrast checker → · Palette generator →