#2127A6#2127A6

#2127A6 is a dark, vivid blue. Relative luminance 0.045; OKLCH L 37.5% C 0.196 H 270.2°. Best body text is #FFFFFF at 11.02:1 contrast (WCAG AA passes).

Color values

HEX	#2127A6
RGB	rgb(33, 39, 166)
HSL	hsl(237, 67%, 39%)
HSV	hsv(237, 80%, 65%)
CMYK	cmyk(80.1%, 76.5%, 0%, 34.9%)
CIE-LAB	lab(25.34, 43.04, -67.67)
CIE-LCH	lch(25.34, 80.19, 302.46°)
OKLab	oklab(37.46% 0.0006 -0.196)
OKLCH	oklch(37.46% 0.196 270.2)
XYZ	xyz(8.2333, 4.5266, 36.5088)
Luminance	0.0453 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2127A6 #A6A021

analogous

#216AA6 #2127A6 #5E21A6

triadic

#2127A6 #A62127 #27A621

tetradic

#2127A6 #A6216A #A6A021 #21A65E

square

#2127A6 #A6216A #A6A021 #21A65E

split-complementary

#2127A6 #A65E21 #6AA621

monochromatic

#0D0F40 #171B73 #2127A6 #2F36D6 #6267E0

Accessibility & contrast

On white

11.02

#2127A6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#2127A6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2127A6

11.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2127A6	#FFFFFF	#000000	##FFFFFF
##2127A6	1.00	11.02	1.91	11.02
#FFFFFF	11.02	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0043AA

Deuteranopia (green-blind)

#0035A4

Tritanopia (blue-blind)

#004D65

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #2127a6;
/* rgb */ color: rgb(33, 39, 166);
/* oklch */ color: oklch(37.5% 0.196 270.2);

Tailwind

colors: {
  custom: {
    50: '#7563c2',
    500: '#2127a6',
    950: '#000000',
  },
}

SCSS

$custom: #2127a6;
$custom-light: #7563c2;
$custom-dark: #000000;

JSON

{
  "hex": "#2127a6",
  "rgb": {
    "r": 33,
    "g": 39,
    "b": 166
  },
  "hsl": {
    "h": 237.293,
    "s": 66.834,
    "l": 39.02
  },
  "oklch": {
    "l": 0.3746,
    "c": 0.19599,
    "h": 270.2
  },
  "luminance": 0.04528
}

Semantic roles & 50–950 ramp

primary

#2127A6

secondary

#C5C05E

accent

#E23EEA

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0513

muted

#7C7A82

Preview Lab

Preview with #2127A6

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

Preview Lab → · Contrast checker → · Palette generator →