#2159B4#2159B4

#2159B4 is a mid, vivid blue. Relative luminance 0.108; OKLCH L 48.1% C 0.156 H 259.9°. Best body text is #FFFFFF at 6.66:1 contrast (WCAG AA passes).

Color values

HEX	#2159B4
RGB	rgb(33, 89, 180)
HSL	hsl(217, 69%, 42%)
HSV	hsv(217, 82%, 71%)
CMYK	cmyk(81.7%, 50.6%, 0%, 29.4%)
CIE-LAB	lab(39.18, 16.00, -53.39)
CIE-LCH	lch(39.18, 55.74, 286.68°)
OKLab	oklab(48.09% -0.0275 -0.1537)
OKLCH	oklch(48.09% 0.156 259.9)
XYZ	xyz(12.4348, 10.7619, 44.5930)
Luminance	0.1076 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2159B4 #B47C21

analogous

#21A3B4 #2159B4 #3321B4

triadic

#2159B4 #B42159 #59B421

tetradic

#2159B4 #B421A3 #B47C21 #21B433

square

#2159B4 #B421A3 #B47C21 #21B433

split-complementary

#2159B4 #B43321 #A3B421

monochromatic

#0E264D #183F80 #2159B4 #3876DA #6B99E4

Accessibility & contrast

On white

6.66

#2159B4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#2159B4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2159B4

6.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2159B4	#FFFFFF	#000000	##FFFFFF
##2159B4	1.00	6.66	3.15	6.66
#FFFFFF	6.66	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F63B7

Deuteranopia (green-blind)

#0056B2

Tritanopia (blue-blind)

#006F7E

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #2159b4;
/* rgb */ color: rgb(33, 89, 180);
/* oklch */ color: oklch(48.1% 0.156 259.9);

Tailwind

colors: {
  custom: {
    50: '#7587cb',
    500: '#2159b4',
    950: '#000000',
  },
}

SCSS

$custom: #2159b4;
$custom-light: #7587cb;
$custom-dark: #000000;

JSON

{
  "hex": "#2159b4",
  "rgb": {
    "r": 33,
    "g": 89,
    "b": 180
  },
  "hsl": {
    "h": 217.143,
    "s": 69.014,
    "l": 41.765
  },
  "oklch": {
    "l": 0.48085,
    "c": 0.15617,
    "h": 259.9
  },
  "luminance": 0.10763
}

Semantic roles & 50–950 ramp

primary

#2159B4

secondary

#CAA467

accent

#A93CEC

background

#F7F8FC

surface

#EEEFF9

border

#C9CAD2

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #2159B4

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

Preview Lab → · Contrast checker → · Palette generator →