#2123A9#2123A9

#2123A9 is a dark, highly saturated blue. Relative luminance 0.044; OKLCH L 37.3% C 0.203 H 270.4°. Best body text is #FFFFFF at 11.18:1 contrast (WCAG AA passes).

Color values

HEX	#2123A9
RGB	rgb(33, 35, 169)
HSL	hsl(239, 67%, 40%)
HSV	hsv(239, 80%, 66%)
CMYK	cmyk(80.5%, 79.3%, 0%, 33.7%)
CIE-LAB	lab(24.92, 46.23, -70.18)
CIE-LCH	lch(24.92, 84.04, 303.38°)
OKLab	oklab(37.26% 0.0013 -0.2032)
OKLCH	oklch(37.26% 0.203 270.4)
XYZ	xyz(8.3872, 4.3890, 37.9335)
Luminance	0.0439 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2123A9 #A9A721

analogous

#2167A9 #2123A9 #6321A9

triadic

#2123A9 #A92123 #23A921

tetradic

#2123A9 #A92167 #A9A721 #21A963

square

#2123A9 #A92167 #A9A721 #21A963

split-complementary

#2123A9 #A96321 #67A921

monochromatic

#0D0E43 #171876 #2123A9 #3133D7 #6466E1

Accessibility & contrast

On white

11.18

#2123A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#2123A9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2123A9

11.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2123A9	#FFFFFF	#000000	##FFFFFF
##2123A9	1.00	11.18	1.88	11.18
#FFFFFF	11.18	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0042AD

Deuteranopia (green-blind)

#0034A7

Tritanopia (blue-blind)

#004C66

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #2123a9;
/* rgb */ color: rgb(33, 35, 169);
/* oklch */ color: oklch(37.3% 0.203 270.4);

Tailwind

colors: {
  custom: {
    50: '#7761c4',
    500: '#2123a9',
    950: '#000000',
  },
}

SCSS

$custom: #2123a9;
$custom-light: #7761c4;
$custom-dark: #000000;

JSON

{
  "hex": "#2123a9",
  "rgb": {
    "r": 33,
    "g": 35,
    "b": 169
  },
  "hsl": {
    "h": 239.118,
    "s": 67.327,
    "l": 39.608
  },
  "oklch": {
    "l": 0.37262,
    "c": 0.20323,
    "h": 270.4
  },
  "luminance": 0.0439
}

Semantic roles & 50–950 ramp

primary

#2123A9

secondary

#C6C460

accent

#E83EEA

background

#F8F5FC

surface

#EFEAF8

border

#CAC6D1

text

#0A0513

muted

#7C7982

Preview Lab

Preview with #2123A9

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

Preview Lab → · Contrast checker → · Palette generator →