#2B45B4#2B45B4

#2B45B4 is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.4% C 0.178 H 268.0°. Best body text is #FFFFFF at 8.04:1 contrast (WCAG AA passes).

Color values

HEX	#2B45B4
RGB	rgb(43, 69, 180)
HSL	hsl(229, 61%, 44%)
HSV	hsv(229, 76%, 71%)
CMYK	cmyk(76.1%, 61.7%, 0%, 29.4%)
CIE-LAB	lab(34.12, 30.27, -61.60)
CIE-LCH	lch(34.12, 68.64, 296.17°)
OKLab	oklab(44.37% -0.0062 -0.178)
OKLCH	oklch(44.37% 0.178 268)
XYZ	xyz(11.3597, 8.0639, 44.1290)
Luminance	0.0806 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B45B4 #B49A2B

analogous

#2B89B4 #2B45B4 #552BB4

triadic

#2B45B4 #B42B45 #45B42B

tetradic

#2B45B4 #B42B89 #B49A2B #2BB455

square

#2B45B4 #B42B89 #B49A2B #2BB455

split-complementary

#2B45B4 #B4552B #89B42B

monochromatic

#131F51 #1F3283 #2B45B4 #4963D3 #7A8DDF

Accessibility & contrast

On white

8.04

#2B45B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#2B45B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B45B4

8.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B45B4	#FFFFFF	#000000	##FFFFFF
##2B45B4	1.00	8.04	2.61	8.04
#FFFFFF	8.04	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057B8

Deuteranopia (green-blind)

#004AB2

Tritanopia (blue-blind)

#006276

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #2b45b4;
/* rgb */ color: rgb(43, 69, 180);
/* oklch */ color: oklch(44.4% 0.178 268.0);

Tailwind

colors: {
  custom: {
    50: '#7978cb',
    500: '#2b45b4',
    950: '#000000',
  },
}

SCSS

$custom: #2b45b4;
$custom-light: #7978cb;
$custom-dark: #000000;

JSON

{
  "hex": "#2b45b4",
  "rgb": {
    "r": 43,
    "g": 69,
    "b": 180
  },
  "hsl": {
    "h": 228.613,
    "s": 61.435,
    "l": 43.725
  },
  "oklch": {
    "l": 0.4437,
    "c": 0.17814,
    "h": 268
  },
  "luminance": 0.08065
}

Semantic roles & 50–950 ramp

primary

#2B45B4

secondary

#C7B773

accent

#C643E5

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #2B45B4

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

Preview Lab → · Contrast checker → · Palette generator →