#2127A0#2127A0

#2127A0 is a dark, vivid blue. Relative luminance 0.043; OKLCH L 36.8% C 0.189 H 270.5°. Best body text is #FFFFFF at 11.28:1 contrast (WCAG AA passes).

Color values

HEX	#2127A0
RGB	rgb(33, 39, 160)
HSL	hsl(237, 66%, 38%)
HSV	hsv(237, 79%, 63%)
CMYK	cmyk(79.4%, 75.6%, 0%, 37.3%)
CIE-LAB	lab(24.68, 40.98, -65.13)
CIE-LCH	lch(24.68, 76.95, 302.18°)
OKLab	oklab(36.79% 0.0016 -0.1886)
OKLCH	oklch(36.79% 0.189 270.5)
XYZ	xyz(7.6957, 4.3116, 33.6775)
Luminance	0.0431 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2127A0 #A09A21

analogous

#2167A0 #2127A0 #5A21A0

triadic

#2127A0 #A02127 #27A021

tetradic

#2127A0 #A02167 #A09A21 #21A05A

square

#2127A0 #A02167 #A09A21 #21A05A

split-complementary

#2127A0 #A05A21 #67A021

monochromatic

#0C0E3B #171B6D #2127A0 #2B33D3 #5E64DE

Accessibility & contrast

On white

11.28

#2127A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#2127A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2127A0

11.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2127A0	#FFFFFF	#000000	##FFFFFF
##2127A0	1.00	11.28	1.86	11.28
#FFFFFF	11.28	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0041A4

Deuteranopia (green-blind)

#00349E

Tritanopia (blue-blind)

#004B62

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #2127a0;
/* rgb */ color: rgb(33, 39, 160);
/* oklch */ color: oklch(36.8% 0.189 270.5);

Tailwind

colors: {
  custom: {
    50: '#7463bd',
    500: '#2127a0',
    950: '#000000',
  },
}

SCSS

$custom: #2127a0;
$custom-light: #7463bd;
$custom-dark: #000000;

JSON

{
  "hex": "#2127a0",
  "rgb": {
    "r": 33,
    "g": 39,
    "b": 160
  },
  "hsl": {
    "h": 237.165,
    "s": 65.803,
    "l": 37.843
  },
  "oklch": {
    "l": 0.36792,
    "c": 0.18862,
    "h": 270.5
  },
  "luminance": 0.04312
}

Semantic roles & 50–950 ramp

primary

#2127A0

secondary

#C2BD5B

accent

#E13FE9

background

#F7F5FB

surface

#EEEAF7

border

#C9C6D0

text

#0A0512

muted

#7C7981

Preview Lab

Preview with #2127A0

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

Preview Lab → · Contrast checker → · Palette generator →