#2123AA#2123AA

#2123AA is a dark, highly saturated blue. Relative luminance 0.044; OKLCH L 37.4% C 0.204 H 270.3°. Best body text is #FFFFFF at 11.14:1 contrast (WCAG AA passes).

Color values

HEX	#2123AA
RGB	rgb(33, 35, 170)
HSL	hsl(239, 67%, 40%)
HSV	hsv(239, 81%, 67%)
CMYK	cmyk(80.6%, 79.4%, 0%, 33.3%)
CIE-LAB	lab(25.03, 46.56, -70.59)
CIE-LCH	lch(25.03, 84.56, 303.41°)
OKLab	oklab(37.38% 0.0011 -0.2044)
OKLCH	oklch(37.38% 0.204 270.3)
XYZ	xyz(8.4815, 4.4267, 38.4298)
Luminance	0.0443 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2123AA #AAA821

analogous

#2168AA #2123AA #6321AA

triadic

#2123AA #AA2123 #23AA21

tetradic

#2123AA #AA2168 #AAA821 #21AA63

square

#2123AA #AA2168 #AAA821 #21AA63

split-complementary

#2123AA #AA6321 #68AA21

monochromatic

#0D0E43 #171877 #2123AA #3134D7 #6466E1

Accessibility & contrast

On white

11.14

#2123AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#2123AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2123AA

11.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2123AA	#FFFFFF	#000000	##FFFFFF
##2123AA	1.00	11.14	1.89	11.14
#FFFFFF	11.14	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0042AE

Deuteranopia (green-blind)

#0034A8

Tritanopia (blue-blind)

#004D66

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #2123aa;
/* rgb */ color: rgb(33, 35, 170);
/* oklch */ color: oklch(37.4% 0.204 270.3);

Tailwind

colors: {
  custom: {
    50: '#7761c5',
    500: '#2123aa',
    950: '#000000',
  },
}

SCSS

$custom: #2123aa;
$custom-light: #7761c5;
$custom-dark: #000000;

JSON

{
  "hex": "#2123aa",
  "rgb": {
    "r": 33,
    "g": 35,
    "b": 170
  },
  "hsl": {
    "h": 239.124,
    "s": 67.488,
    "l": 39.804
  },
  "oklch": {
    "l": 0.37378,
    "c": 0.20442,
    "h": 270.3
  },
  "luminance": 0.04428
}

Semantic roles & 50–950 ramp

primary

#2123AA

secondary

#C6C561

accent

#E83DEA

background

#F8F5FC

surface

#EFEAF8

border

#CAC6D1

text

#0B0513

muted

#7C7982

Preview Lab

Preview with #2123AA

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

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