#2126B3#2126B3

#2126B3 is a dark, highly saturated blue. Relative luminance 0.050; OKLCH L 38.8% C 0.212 H 269.6°. Best body text is #FFFFFF at 10.54:1 contrast (WCAG AA passes).

Color values

HEX	#2126B3
RGB	rgb(33, 38, 179)
HSL	hsl(238, 69%, 42%)
HSV	hsv(238, 82%, 70%)
CMYK	cmyk(81.6%, 78.8%, 0%, 29.8%)
CIE-LAB	lab(26.63, 47.92, -73.35)
CIE-LCH	lch(26.63, 87.61, 303.16°)
OKLab	oklab(38.8% -0.0014 -0.2124)
OKLCH	oklch(38.8% 0.212 269.6)
XYZ	xyz(9.4542, 4.9631, 43.0988)
Luminance	0.0496 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2126B3 #B3AE21

analogous

#216FB3 #2126B3 #6521B3

triadic

#2126B3 #B32126 #26B321

tetradic

#2126B3 #B3216F #B3AE21 #21B365

square

#2126B3 #B3216F #B3AE21 #21B365

split-complementary

#2126B3 #B36521 #6FB321

monochromatic

#0E104C #171B7F #2126B3 #373DDA #6B6FE4

Accessibility & contrast

On white

10.54

#2126B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#2126B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2126B3

10.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2126B3	#FFFFFF	#000000	##FFFFFF
##2126B3	1.00	10.54	1.99	10.54
#FFFFFF	10.54	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046B7

Deuteranopia (green-blind)

#0037B1

Tritanopia (blue-blind)

#00526C

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #2126b3;
/* rgb */ color: rgb(33, 38, 179);
/* oklch */ color: oklch(38.8% 0.212 269.6);

Tailwind

colors: {
  custom: {
    50: '#7963cb',
    500: '#2126b3',
    950: '#000000',
  },
}

SCSS

$custom: #2126b3;
$custom-light: #7963cb;
$custom-dark: #000000;

JSON

{
  "hex": "#2126b3",
  "rgb": {
    "r": 33,
    "g": 38,
    "b": 179
  },
  "hsl": {
    "h": 237.945,
    "s": 68.868,
    "l": 41.569
  },
  "oklch": {
    "l": 0.388,
    "c": 0.21245,
    "h": 269.6
  },
  "luminance": 0.04964
}

Semantic roles & 50–950 ramp

primary

#2126B3

secondary

#CAC666

accent

#E63CEC

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0513

muted

#7C7A82

Preview Lab

Preview with #2126B3

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

Preview Lab → · Contrast checker → · Palette generator →