#2153BD#2153BD

#2153BD is a mid, vivid blue. Relative luminance 0.102; OKLCH L 47.5% C 0.176 H 262.7°. Best body text is #FFFFFF at 6.92:1 contrast (WCAG AA passes).

Color values

HEX	#2153BD
RGB	rgb(33, 83, 189)
HSL	hsl(221, 70%, 44%)
HSV	hsv(221, 83%, 74%)
CMYK	cmyk(82.5%, 56.1%, 0%, 25.9%)
CIE-LAB	lab(38.17, 23.49, -60.31)
CIE-LCH	lch(38.17, 64.72, 291.28°)
OKLab	oklab(47.53% -0.0224 -0.1742)
OKLCH	oklch(47.53% 0.176 262.7)
XYZ	xyz(12.9025, 10.1824, 49.4196)
Luminance	0.1018 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2153BD #BD8B21

analogous

#21A1BD #2153BD #3D21BD

triadic

#2153BD #BD2153 #53BD21

tetradic

#2153BD #BD21A1 #BD8B21 #21BD3D

square

#2153BD #BD21A1 #BD8B21 #21BD3D

split-complementary

#2153BD #BD3D21 #A1BD21

monochromatic

#0F2555 #183C89 #2153BD #3E71DD #7297E6

Accessibility & contrast

On white

6.92

#2153BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#2153BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2153BD

6.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2153BD	#FFFFFF	#000000	##FFFFFF
##2153BD	1.00	6.92	3.04	6.92
#FFFFFF	6.92	1.00	21.00	1.00
#000000	3.04	21.00	1.00	21.00
##FFFFFF	6.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061C1

Deuteranopia (green-blind)

#0053BB

Tritanopia (blue-blind)

#006E80

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #2153bd;
/* rgb */ color: rgb(33, 83, 189);
/* oklch */ color: oklch(47.5% 0.176 262.7);

Tailwind

colors: {
  custom: {
    50: '#7882d2',
    500: '#2153bd',
    950: '#000000',
  },
}

SCSS

$custom: #2153bd;
$custom-light: #7882d2;
$custom-dark: #000000;

JSON

{
  "hex": "#2153bd",
  "rgb": {
    "r": 33,
    "g": 83,
    "b": 189
  },
  "hsl": {
    "h": 220.769,
    "s": 70.27,
    "l": 43.529
  },
  "oklch": {
    "l": 0.47527,
    "c": 0.17563,
    "h": 262.7
  },
  "luminance": 0.10184
}

Semantic roles & 50–950 ramp

primary

#2153BD

secondary

#CDAE6D

accent

#B43BED

background

#F8F7FD

surface

#EFEEFA

border

#CAC9D3

text

#0A0A14

muted

#7C7C83

Preview Lab

Preview with #2153BD

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

Preview Lab → · Contrast checker → · Palette generator →