#2145B1#2145B1

#2145B1 is a dark, vivid blue. Relative luminance 0.078; OKLCH L 43.7% C 0.177 H 265.3°. Best body text is #FFFFFF at 8.23:1 contrast (WCAG AA passes).

Color values

HEX	#2145B1
RGB	rgb(33, 69, 177)
HSL	hsl(225, 69%, 41%)
HSV	hsv(225, 81%, 69%)
CMYK	cmyk(81.4%, 61%, 0%, 30.6%)
CIE-LAB	lab(33.46, 28.14, -60.91)
CIE-LCH	lch(33.46, 67.09, 294.80°)
OKLab	oklab(43.7% -0.0144 -0.1762)
OKLCH	oklch(43.7% 0.177 265.3)
XYZ	xyz(10.6883, 7.7526, 42.5195)
Luminance	0.0775 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2145B1 #B18D21

analogous

#218DB1 #2145B1 #4521B1

triadic

#2145B1 #B12145 #45B121

tetradic

#2145B1 #B1218D #B18D21 #21B145

square

#2145B1 #B1218D #B18D21 #21B145

split-complementary

#2145B1 #B14521 #8DB121

monochromatic

#0E1D4A #17317D #2145B1 #365FD9 #6988E3

Accessibility & contrast

On white

8.23

#2145B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#2145B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2145B1

8.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2145B1	#FFFFFF	#000000	##FFFFFF
##2145B1	1.00	8.23	2.55	8.23
#FFFFFF	8.23	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056B5

Deuteranopia (green-blind)

#0048AF

Tritanopia (blue-blind)

#006174

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #2145b1;
/* rgb */ color: rgb(33, 69, 177);
/* oklch */ color: oklch(43.7% 0.177 265.3);

Tailwind

colors: {
  custom: {
    50: '#7678c9',
    500: '#2145b1',
    950: '#000000',
  },
}

SCSS

$custom: #2145b1;
$custom-light: #7678c9;
$custom-dark: #000000;

JSON

{
  "hex": "#2145b1",
  "rgb": {
    "r": 33,
    "g": 69,
    "b": 177
  },
  "hsl": {
    "h": 225,
    "s": 68.571,
    "l": 41.176
  },
  "oklch": {
    "l": 0.43695,
    "c": 0.17676,
    "h": 265.3
  },
  "luminance": 0.07754
}

Semantic roles & 50–950 ramp

primary

#2145B1

secondary

#C9B065

accent

#C03CEB

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2145B1

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

Preview Lab → · Contrast checker → · Palette generator →