#2129A0#2129A0

#2129A0 is a dark, vivid blue. Relative luminance 0.044; OKLCH L 37.1% C 0.187 H 270.2°. Best body text is #FFFFFF at 11.11:1 contrast (WCAG AA passes).

Color values

HEX	#2129A0
RGB	rgb(33, 41, 160)
HSL	hsl(236, 66%, 38%)
HSV	hsv(236, 79%, 63%)
CMYK	cmyk(79.4%, 74.4%, 0%, 37.3%)
CIE-LAB	lab(25.10, 39.80, -64.43)
CIE-LCH	lch(25.10, 75.73, 301.71°)
OKLab	oklab(37.09% 0.0008 -0.1866)
OKLCH	oklch(37.09% 0.187 270.2)
XYZ	xyz(7.7631, 4.4464, 33.7000)
Luminance	0.0445 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2129A0 #A09821

analogous

#2169A0 #2129A0 #5821A0

triadic

#2129A0 #A02129 #29A021

tetradic

#2129A0 #A02169 #A09821 #21A058

square

#2129A0 #A02169 #A09821 #21A058

split-complementary

#2129A0 #A05821 #69A021

monochromatic

#0C0F3B #171C6D #2129A0 #2B36D3 #5E66DE

Accessibility & contrast

On white

11.11

#2129A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#2129A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2129A0

11.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2129A0	#FFFFFF	#000000	##FFFFFF
##2129A0	1.00	11.11	1.89	11.11
#FFFFFF	11.11	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0042A3

Deuteranopia (green-blind)

#00359E

Tritanopia (blue-blind)

#004C62

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #2129a0;
/* rgb */ color: rgb(33, 41, 160);
/* oklch */ color: oklch(37.1% 0.187 270.2);

Tailwind

colors: {
  custom: {
    50: '#7464bd',
    500: '#2129a0',
    950: '#000000',
  },
}

SCSS

$custom: #2129a0;
$custom-light: #7464bd;
$custom-dark: #000000;

JSON

{
  "hex": "#2129a0",
  "rgb": {
    "r": 33,
    "g": 41,
    "b": 160
  },
  "hsl": {
    "h": 236.22,
    "s": 65.803,
    "l": 37.843
  },
  "oklch": {
    "l": 0.37091,
    "c": 0.18661,
    "h": 270.2
  },
  "luminance": 0.04447
}

Semantic roles & 50–950 ramp

primary

#2129A0

secondary

#C2BC5B

accent

#DE3FE9

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#0A0512

muted

#7C7A81

Preview Lab

Preview with #2129A0

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

Preview Lab → · Contrast checker → · Palette generator →