#2127A4#2127A4

#2127A4 is a dark, vivid blue. Relative luminance 0.045; OKLCH L 37.2% C 0.194 H 270.3°. Best body text is #FFFFFF at 11.11:1 contrast (WCAG AA passes).

Color values

HEX	#2127A4
RGB	rgb(33, 39, 164)
HSL	hsl(237, 66%, 39%)
HSV	hsv(237, 80%, 64%)
CMYK	cmyk(79.9%, 76.2%, 0%, 35.7%)
CIE-LAB	lab(25.12, 42.36, -66.82)
CIE-LCH	lch(25.12, 79.12, 302.37°)
OKLab	oklab(37.24% 0.0009 -0.1935)
OKLCH	oklch(37.24% 0.194 270.3)
XYZ	xyz(8.0513, 4.4538, 35.5501)
Luminance	0.0445 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2127A4 #A49E21

analogous

#2168A4 #2127A4 #5C21A4

triadic

#2127A4 #A42127 #27A421

tetradic

#2127A4 #A42168 #A49E21 #21A45C

square

#2127A4 #A42168 #A49E21 #21A45C

split-complementary

#2127A4 #A45C21 #68A421

monochromatic

#0C0F3E #171B71 #2127A4 #2D35D5 #6066DF

Accessibility & contrast

On white

11.11

#2127A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#2127A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2127A4

11.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2127A4	#FFFFFF	#000000	##FFFFFF
##2127A4	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)

#0042A8

Deuteranopia (green-blind)

#0035A2

Tritanopia (blue-blind)

#004C64

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #2127a4;
/* rgb */ color: rgb(33, 39, 164);
/* oklch */ color: oklch(37.2% 0.194 270.3);

Tailwind

colors: {
  custom: {
    50: '#7563c0',
    500: '#2127a4',
    950: '#000000',
  },
}

SCSS

$custom: #2127a4;
$custom-light: #7563c0;
$custom-dark: #000000;

JSON

{
  "hex": "#2127a4",
  "rgb": {
    "r": 33,
    "g": 39,
    "b": 164
  },
  "hsl": {
    "h": 237.252,
    "s": 66.497,
    "l": 38.627
  },
  "oklch": {
    "l": 0.37237,
    "c": 0.19355,
    "h": 270.3
  },
  "luminance": 0.04455
}

Semantic roles & 50–950 ramp

primary

#2127A4

secondary

#C4BF5D

accent

#E23EE9

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0512

muted

#7C7A81

Preview Lab

Preview with #2127A4

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

Preview Lab → · Contrast checker → · Palette generator →