#2123A7#2123A7

#2123A7 is a dark, highly saturated blue. Relative luminance 0.043; OKLCH L 37.0% C 0.201 H 270.5°. Best body text is #FFFFFF at 11.27:1 contrast (WCAG AA passes).

Color values

HEX	#2123A7
RGB	rgb(33, 35, 167)
HSL	hsl(239, 67%, 39%)
HSV	hsv(239, 80%, 65%)
CMYK	cmyk(80.2%, 79%, 0%, 34.5%)
CIE-LAB	lab(24.68, 45.58, -69.36)
CIE-LCH	lch(24.68, 82.99, 303.31°)
OKLab	oklab(37.03% 0.0016 -0.2008)
OKLCH	oklch(37.03% 0.201 270.5)
XYZ	xyz(8.2009, 4.3145, 36.9523)
Luminance	0.0432 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2123A7 #A7A521

analogous

#2166A7 #2123A7 #6221A7

triadic

#2123A7 #A72123 #23A721

tetradic

#2123A7 #A72166 #A7A521 #21A762

square

#2123A7 #A72166 #A7A521 #21A762

split-complementary

#2123A7 #A76221 #66A721

monochromatic

#0D0E41 #171874 #2123A7 #2F32D6 #6264E0

Accessibility & contrast

On white

11.27

#2123A7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#2123A7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2123A7

11.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2123A7	#FFFFFF	#000000	##FFFFFF
##2123A7	1.00	11.27	1.86	11.27
#FFFFFF	11.27	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0041AB

Deuteranopia (green-blind)

#0034A5

Tritanopia (blue-blind)

#004C65

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #2123a7;
/* rgb */ color: rgb(33, 35, 167);
/* oklch */ color: oklch(37.0% 0.201 270.5);

Tailwind

colors: {
  custom: {
    50: '#7661c3',
    500: '#2123a7',
    950: '#000000',
  },
}

SCSS

$custom: #2123a7;
$custom-light: #7661c3;
$custom-dark: #000000;

JSON

{
  "hex": "#2123a7",
  "rgb": {
    "r": 33,
    "g": 35,
    "b": 167
  },
  "hsl": {
    "h": 239.104,
    "s": 67,
    "l": 39.216
  },
  "oklch": {
    "l": 0.37031,
    "c": 0.20086,
    "h": 270.5
  },
  "luminance": 0.04315
}

Semantic roles & 50–950 ramp

primary

#2123A7

secondary

#C5C45F

accent

#E73EEA

background

#F8F5FC

surface

#EFEAF8

border

#CAC6D1

text

#0A0513

muted

#7C7982

Preview Lab

Preview with #2123A7

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

Preview Lab → · Contrast checker → · Palette generator →