#2129A9#2129A9

#2129A9 is a dark, vivid blue. Relative luminance 0.048; OKLCH L 38.1% C 0.198 H 269.8°. Best body text is #FFFFFF at 10.74:1 contrast (WCAG AA passes).

Color values

HEX	#2129A9
RGB	rgb(33, 41, 169)
HSL	hsl(236, 67%, 40%)
HSV	hsv(236, 80%, 66%)
CMYK	cmyk(80.5%, 75.7%, 0%, 33.7%)
CIE-LAB	lab(26.08, 42.92, -68.26)
CIE-LCH	lch(26.08, 80.63, 302.16°)
OKLab	oklab(38.08% -0.0006 -0.1977)
OKLCH	oklch(38.08% 0.198 269.8)
XYZ	xyz(8.5791, 4.7728, 37.9975)
Luminance	0.0477 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2129A9 #A9A121

analogous

#216DA9 #2129A9 #5D21A9

triadic

#2129A9 #A92129 #29A921

tetradic

#2129A9 #A9216D #A9A121 #21A95D

square

#2129A9 #A9216D #A9A121 #21A95D

split-complementary

#2129A9 #A95D21 #6DA921

monochromatic

#0D1043 #171D76 #2129A9 #313AD7 #646BE1

Accessibility & contrast

On white

10.74

#2129A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#2129A9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2129A9

10.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2129A9	#FFFFFF	#000000	##FFFFFF
##2129A9	1.00	10.74	1.95	10.74
#FFFFFF	10.74	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044AD

Deuteranopia (green-blind)

#0037A7

Tritanopia (blue-blind)

#004F67

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #2129a9;
/* rgb */ color: rgb(33, 41, 169);
/* oklch */ color: oklch(38.1% 0.198 269.8);

Tailwind

colors: {
  custom: {
    50: '#7664c4',
    500: '#2129a9',
    950: '#000000',
  },
}

SCSS

$custom: #2129a9;
$custom-light: #7664c4;
$custom-dark: #000000;

JSON

{
  "hex": "#2129a9",
  "rgb": {
    "r": 33,
    "g": 41,
    "b": 169
  },
  "hsl": {
    "h": 236.471,
    "s": 67.327,
    "l": 39.608
  },
  "oklch": {
    "l": 0.3808,
    "c": 0.19774,
    "h": 269.8
  },
  "luminance": 0.04774
}

Semantic roles & 50–950 ramp

primary

#2129A9

secondary

#C6C060

accent

#E03EEA

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0513

muted

#7C7A82

Preview Lab

Preview with #2129A9

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

Preview Lab → · Contrast checker → · Palette generator →