#2138A8#2138A8

#2138A8 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.4% C 0.180 H 267.8°. Best body text is #FFFFFF at 9.56:1 contrast (WCAG AA passes).

Color values

HEX	#2138A8
RGB	rgb(33, 56, 168)
HSL	hsl(230, 67%, 39%)
HSV	hsv(230, 80%, 66%)
CMYK	cmyk(80.4%, 66.7%, 0%, 34.1%)
CIE-LAB	lab(29.36, 33.29, -62.25)
CIE-LCH	lch(29.36, 70.60, 298.14°)
OKLab	oklab(40.41% -0.007 -0.1803)
OKLCH	oklch(40.41% 0.18 267.8)
XYZ	xyz(9.1068, 5.9778, 37.7121)
Luminance	0.0598 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2138A8 #A89121

analogous

#217CA8 #2138A8 #4E21A8

triadic

#2138A8 #A82138 #38A821

tetradic

#2138A8 #A8217C #A89121 #21A84E

square

#2138A8 #A8217C #A89121 #21A84E

split-complementary

#2138A8 #A84E21 #7CA821

monochromatic

#0D1642 #172775 #2138A8 #304CD6 #6378E0

Accessibility & contrast

On white

9.56

#2138A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#2138A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2138A8

9.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2138A8	#FFFFFF	#000000	##FFFFFF
##2138A8	1.00	9.56	2.20	9.56
#FFFFFF	9.56	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CAC

Deuteranopia (green-blind)

#003FA6

Tritanopia (blue-blind)

#00566B

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #2138a8;
/* rgb */ color: rgb(33, 56, 168);
/* oklch */ color: oklch(40.4% 0.180 267.8);

Tailwind

colors: {
  custom: {
    50: '#746ec3',
    500: '#2138a8',
    950: '#000000',
  },
}

SCSS

$custom: #2138a8;
$custom-light: #746ec3;
$custom-dark: #000000;

JSON

{
  "hex": "#2138a8",
  "rgb": {
    "r": 33,
    "g": 56,
    "b": 168
  },
  "hsl": {
    "h": 229.778,
    "s": 67.164,
    "l": 39.412
  },
  "oklch": {
    "l": 0.40414,
    "c": 0.1804,
    "h": 267.8
  },
  "luminance": 0.05979
}

Semantic roles & 50–950 ramp

primary

#2138A8

secondary

#C5B45F

accent

#CD3EEA

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #2138A8

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

Preview Lab → · Contrast checker → · Palette generator →