#2138A1#2138A1

#2138A1 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.7% C 0.171 H 267.8°. Best body text is #FFFFFF at 9.79:1 contrast (WCAG AA passes).

Color values

HEX	#2138A1
RGB	rgb(33, 56, 161)
HSL	hsl(229, 66%, 38%)
HSV	hsv(229, 80%, 63%)
CMYK	cmyk(79.5%, 65.2%, 0%, 36.9%)
CIE-LAB	lab(28.70, 30.66, -59.10)
CIE-LCH	lch(28.70, 66.58, 297.42°)
OKLab	oklab(39.74% -0.0067 -0.171)
OKLCH	oklch(39.74% 0.171 267.8)
XYZ	xyz(8.4722, 5.7239, 34.3696)
Luminance	0.0573 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2138A1 #A18A21

analogous

#2178A1 #2138A1 #4A21A1

triadic

#2138A1 #A12138 #38A121

tetradic

#2138A1 #A12178 #A18A21 #21A14A

square

#2138A1 #A12178 #A18A21 #21A14A

split-complementary

#2138A1 #A14A21 #78A121

monochromatic

#0C153B #17266E #2138A1 #2C4AD4 #5E75DE

Accessibility & contrast

On white

9.79

#2138A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#2138A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2138A1

9.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2138A1	#FFFFFF	#000000	##FFFFFF
##2138A1	1.00	9.79	2.15	9.79
#FFFFFF	9.79	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AA4

Deuteranopia (green-blind)

#003E9F

Tritanopia (blue-blind)

#005467

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #2138a1;
/* rgb */ color: rgb(33, 56, 161);
/* oklch */ color: oklch(39.7% 0.171 267.8);

Tailwind

colors: {
  custom: {
    50: '#726ebe',
    500: '#2138a1',
    950: '#000000',
  },
}

SCSS

$custom: #2138a1;
$custom-light: #726ebe;
$custom-dark: #000000;

JSON

{
  "hex": "#2138a1",
  "rgb": {
    "r": 33,
    "g": 56,
    "b": 161
  },
  "hsl": {
    "h": 229.219,
    "s": 65.979,
    "l": 38.039
  },
  "oklch": {
    "l": 0.39738,
    "c": 0.17116,
    "h": 267.8
  },
  "luminance": 0.05725
}

Semantic roles & 50–950 ramp

primary

#2138A1

secondary

#C3B05B

accent

#CA3FE9

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #2138A1

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

Preview Lab → · Contrast checker → · Palette generator →