#2158B2#2158B2

#2158B2 is a mid, vivid blue. Relative luminance 0.105; OKLCH L 47.7% C 0.155 H 259.9°. Best body text is #FFFFFF at 6.77:1 contrast (WCAG AA passes).

Color values

HEX	#2158B2
RGB	rgb(33, 88, 178)
HSL	hsl(217, 69%, 41%)
HSV	hsv(217, 81%, 70%)
CMYK	cmyk(81.5%, 50.6%, 0%, 30.2%)
CIE-LAB	lab(38.75, 15.87, -52.90)
CIE-LCH	lch(38.75, 55.23, 286.70°)
OKLab	oklab(47.72% -0.027 -0.1523)
OKLCH	oklch(47.72% 0.155 259.9)
XYZ	xyz(12.1499, 10.5157, 43.5002)
Luminance	0.1052 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2158B2 #B27B21

analogous

#21A1B2 #2158B2 #3221B2

triadic

#2158B2 #B22158 #58B221

tetradic

#2158B2 #B221A1 #B27B21 #21B232

square

#2158B2 #B221A1 #B27B21 #21B232

split-complementary

#2158B2 #B23221 #A1B221

monochromatic

#0E254B #173E7E #2158B2 #3674DA #6A98E3

Accessibility & contrast

On white

6.77

#2158B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#2158B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2158B2

6.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2158B2	#FFFFFF	#000000	##FFFFFF
##2158B2	1.00	6.77	3.10	6.77
#FFFFFF	6.77	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F62B5

Deuteranopia (green-blind)

#0055B0

Tritanopia (blue-blind)

#006E7C

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #2158b2;
/* rgb */ color: rgb(33, 88, 178);
/* oklch */ color: oklch(47.7% 0.155 259.9);

Tailwind

colors: {
  custom: {
    50: '#7586ca',
    500: '#2158b2',
    950: '#000000',
  },
}

SCSS

$custom: #2158b2;
$custom-light: #7586ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2158b2",
  "rgb": {
    "r": 33,
    "g": 88,
    "b": 178
  },
  "hsl": {
    "h": 217.241,
    "s": 68.72,
    "l": 41.373
  },
  "oklch": {
    "l": 0.47716,
    "c": 0.15468,
    "h": 259.9
  },
  "luminance": 0.10517
}

Semantic roles & 50–950 ramp

primary

#2158B2

secondary

#C9A366

accent

#A93CEC

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #2158B2

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

Preview Lab → · Contrast checker → · Palette generator →