#2833A5#2833A5

#2833A5 is a dark, vivid blue. Relative luminance 0.055; OKLCH L 39.6% C 0.180 H 270.8°. Best body text is #FFFFFF at 9.97:1 contrast (WCAG AA passes).

Color values

HEX	#2833A5
RGB	rgb(40, 51, 165)
HSL	hsl(235, 61%, 40%)
HSV	hsv(235, 76%, 65%)
CMYK	cmyk(75.8%, 69.1%, 0%, 35.3%)
CIE-LAB	lab(28.21, 36.06, -62.32)
CIE-LCH	lch(28.21, 72.01, 300.06°)
OKLab	oklab(39.58% 0.0027 -0.1803)
OKLCH	oklch(39.58% 0.18 270.8)
XYZ	xyz(8.8481, 5.5344, 36.1920)
Luminance	0.0554 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2833A5 #A59A28

analogous

#2871A5 #2833A5 #5B28A5

triadic

#2833A5 #A52833 #33A528

tetradic

#2833A5 #A52871 #A59A28 #28A55B

square

#2833A5 #A52871 #A59A28 #28A55B

split-complementary

#2833A5 #A55B28 #71A528

monochromatic

#101542 #1C2474 #2833A5 #3B48CF #6C76DB

Accessibility & contrast

On white

9.97

#2833A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#2833A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2833A5

9.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2833A5	#FFFFFF	#000000	##FFFFFF
##2833A5	1.00	9.97	2.11	9.97
#FFFFFF	9.97	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049A8

Deuteranopia (green-blind)

#003DA3

Tritanopia (blue-blind)

#005268

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #2833a5;
/* rgb */ color: rgb(40, 51, 165);
/* oklch */ color: oklch(39.6% 0.180 270.8);

Tailwind

colors: {
  custom: {
    50: '#766bc1',
    500: '#2833a5',
    950: '#000000',
  },
}

SCSS

$custom: #2833a5;
$custom-light: #766bc1;
$custom-dark: #000000;

JSON

{
  "hex": "#2833a5",
  "rgb": {
    "r": 40,
    "g": 51,
    "b": 165
  },
  "hsl": {
    "h": 234.72,
    "s": 60.976,
    "l": 40.196
  },
  "oklch": {
    "l": 0.39581,
    "c": 0.18036,
    "h": 270.8
  },
  "luminance": 0.05535
}

Semantic roles & 50–950 ramp

primary

#2833A5

secondary

#C2BA67

accent

#D644E4

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #2833A5

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

Preview Lab → · Contrast checker → · Palette generator →