#2145B3#2145B3

#2145B3 is a dark, vivid blue. Relative luminance 0.078; OKLCH L 43.9% C 0.179 H 265.4°. Best body text is #FFFFFF at 8.18:1 contrast (WCAG AA passes).

Color values

HEX	#2145B3
RGB	rgb(33, 69, 179)
HSL	hsl(225, 69%, 42%)
HSV	hsv(225, 82%, 70%)
CMYK	cmyk(81.6%, 61.5%, 0%, 29.8%)
CIE-LAB	lab(33.63, 28.91, -61.82)
CIE-LCH	lch(33.63, 68.24, 295.06°)
OKLab	oklab(43.87% -0.0143 -0.1788)
OKLCH	oklch(43.87% 0.179 265.4)
XYZ	xyz(10.8891, 7.8329, 43.5771)
Luminance	0.0783 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2145B3 #B38F21

analogous

#218EB3 #2145B3 #4621B3

triadic

#2145B3 #B32145 #45B321

tetradic

#2145B3 #B3218E #B38F21 #21B346

square

#2145B3 #B3218E #B38F21 #21B346

split-complementary

#2145B3 #B34621 #8EB321

monochromatic

#0E1D4C #17317F #2145B3 #375FDA #6B89E4

Accessibility & contrast

On white

8.18

#2145B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#2145B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2145B3

8.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2145B3	#FFFFFF	#000000	##FFFFFF
##2145B3	1.00	8.18	2.57	8.18
#FFFFFF	8.18	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056B7

Deuteranopia (green-blind)

#0048B1

Tritanopia (blue-blind)

#006175

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #2145b3;
/* rgb */ color: rgb(33, 69, 179);
/* oklch */ color: oklch(43.9% 0.179 265.4);

Tailwind

colors: {
  custom: {
    50: '#7678cb',
    500: '#2145b3',
    950: '#000000',
  },
}

SCSS

$custom: #2145b3;
$custom-light: #7678cb;
$custom-dark: #000000;

JSON

{
  "hex": "#2145b3",
  "rgb": {
    "r": 33,
    "g": 69,
    "b": 179
  },
  "hsl": {
    "h": 225.205,
    "s": 68.868,
    "l": 41.569
  },
  "oklch": {
    "l": 0.43874,
    "c": 0.17941,
    "h": 265.4
  },
  "luminance": 0.07834
}

Semantic roles & 50–950 ramp

primary

#2145B3

secondary

#CAB166

accent

#C03CEC

background

#F7F7FC

surface

#EEEDF9

border

#C9C8D2

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2145B3

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

Preview Lab → · Contrast checker → · Palette generator →