#2127A9#2127A9

#2127A9 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 37.8% C 0.200 H 270.0°. Best body text is #FFFFFF at 10.89:1 contrast (WCAG AA passes).

Color values

HEX	#2127A9
RGB	rgb(33, 39, 169)
HSL	hsl(237, 67%, 40%)
HSV	hsv(237, 80%, 66%)
CMYK	cmyk(80.5%, 76.9%, 0%, 33.7%)
CIE-LAB	lab(25.68, 44.05, -68.92)
CIE-LCH	lch(25.68, 81.80, 302.59°)
OKLab	oklab(37.8% 0 -0.1996)
OKLCH	oklch(37.8% 0.2 270)
XYZ	xyz(8.5117, 4.6380, 37.9750)
Luminance	0.0464 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2127A9 #A9A321

analogous

#216BA9 #2127A9 #5F21A9

triadic

#2127A9 #A92127 #27A921

tetradic

#2127A9 #A9216B #A9A321 #21A95F

square

#2127A9 #A9216B #A9A321 #21A95F

split-complementary

#2127A9 #A95F21 #6BA921

monochromatic

#0D0F43 #171B76 #2127A9 #3138D7 #6469E1

Accessibility & contrast

On white

10.89

#2127A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#2127A9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2127A9

10.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2127A9	#FFFFFF	#000000	##FFFFFF
##2127A9	1.00	10.89	1.93	10.89
#FFFFFF	10.89	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044AD

Deuteranopia (green-blind)

#0036A7

Tritanopia (blue-blind)

#004E67

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #2127a9;
/* rgb */ color: rgb(33, 39, 169);
/* oklch */ color: oklch(37.8% 0.200 270.0);

Tailwind

colors: {
  custom: {
    50: '#7663c4',
    500: '#2127a9',
    950: '#000000',
  },
}

SCSS

$custom: #2127a9;
$custom-light: #7663c4;
$custom-dark: #000000;

JSON

{
  "hex": "#2127a9",
  "rgb": {
    "r": 33,
    "g": 39,
    "b": 169
  },
  "hsl": {
    "h": 237.353,
    "s": 67.327,
    "l": 39.608
  },
  "oklch": {
    "l": 0.37797,
    "c": 0.19964,
    "h": 270
  },
  "luminance": 0.04639
}

Semantic roles & 50–950 ramp

primary

#2127A9

secondary

#C6C160

accent

#E33EEA

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0A0513

muted

#7C7A82

Preview Lab

Preview with #2127A9

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

Preview Lab → · Contrast checker → · Palette generator →