#2123A0#2123A0

#2123A0 is a dark, vivid blue. Relative luminance 0.041; OKLCH L 36.2% C 0.192 H 270.9°. Best body text is #FFFFFF at 11.59:1 contrast (WCAG AA passes).

Color values

HEX	#2123A0
RGB	rgb(33, 35, 160)
HSL	hsl(239, 66%, 38%)
HSV	hsv(239, 79%, 63%)
CMYK	cmyk(79.4%, 78.1%, 0%, 37.3%)
CIE-LAB	lab(23.88, 43.25, -66.45)
CIE-LCH	lch(23.88, 79.28, 303.06°)
OKLab	oklab(36.23% 0.003 -0.1924)
OKLCH	oklch(36.23% 0.192 270.9)
XYZ	xyz(7.5712, 4.0626, 33.6360)
Luminance	0.0406 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2123A0 #A09E21

analogous

#2162A0 #2123A0 #5E21A0

triadic

#2123A0 #A02123 #23A021

tetradic

#2123A0 #A02162 #A09E21 #21A05E

square

#2123A0 #A02162 #A09E21 #21A05E

split-complementary

#2123A0 #A05E21 #62A021

monochromatic

#0C0D3B #17186D #2123A0 #2B2ED3 #5E60DE

Accessibility & contrast

On white

11.59

#2123A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#2123A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2123A0

11.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2123A0	#FFFFFF	#000000	##FFFFFF
##2123A0	1.00	11.59	1.81	11.59
#FFFFFF	11.59	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003FA4

Deuteranopia (green-blind)

#00329E

Tritanopia (blue-blind)

#004961

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #2123a0;
/* rgb */ color: rgb(33, 35, 160);
/* oklch */ color: oklch(36.2% 0.192 270.9);

Tailwind

colors: {
  custom: {
    50: '#7460bd',
    500: '#2123a0',
    950: '#000000',
  },
}

SCSS

$custom: #2123a0;
$custom-light: #7460bd;
$custom-dark: #000000;

JSON

{
  "hex": "#2123a0",
  "rgb": {
    "r": 33,
    "g": 35,
    "b": 160
  },
  "hsl": {
    "h": 239.055,
    "s": 65.803,
    "l": 37.843
  },
  "oklch": {
    "l": 0.36228,
    "c": 0.19242,
    "h": 270.9
  },
  "luminance": 0.04063
}

Semantic roles & 50–950 ramp

primary

#2123A0

secondary

#C2C15B

accent

#E63FE9

background

#F7F5FB

surface

#EEEAF7

border

#C9C6D0

text

#0A0512

muted

#7C7981

Preview Lab

Preview with #2123A0

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

Preview Lab → · Contrast checker → · Palette generator →