#215CB3#215CB3

#215CB3 is a mid, vivid blue. Relative luminance 0.112; OKLCH L 48.7% C 0.151 H 258.6°. Best body text is #FFFFFF at 6.47:1 contrast (WCAG AA passes).

Color values

HEX	#215CB3
RGB	rgb(33, 92, 179)
HSL	hsl(216, 69%, 42%)
HSV	hsv(216, 82%, 70%)
CMYK	cmyk(81.6%, 48.6%, 0%, 29.8%)
CIE-LAB	lab(39.97, 13.63, -51.53)
CIE-LCH	lch(39.97, 53.30, 284.82°)
OKLab	oklab(48.67% -0.0299 -0.1482)
OKLCH	oklch(48.67% 0.151 258.6)
XYZ	xyz(12.5880, 11.2308, 44.1434)
Luminance	0.1123 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#215CB3 #B37821

analogous

#21A5B3 #215CB3 #2F21B3

triadic

#215CB3 #B3215C #5CB321

tetradic

#215CB3 #B321A5 #B37821 #21B32F

square

#215CB3 #B321A5 #B37821 #21B32F

split-complementary

#215CB3 #B32F21 #A5B321

monochromatic

#0E274C #17417F #215CB3 #3779DA #6B9CE4

Accessibility & contrast

On white

6.47

#215CB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#215CB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #215CB3

6.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##215CB3	#FFFFFF	#000000	##FFFFFF
##215CB3	1.00	6.47	3.25	6.47
#FFFFFF	6.47	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2965B6

Deuteranopia (green-blind)

#0058B1

Tritanopia (blue-blind)

#00717F

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #215cb3;
/* rgb */ color: rgb(33, 92, 179);
/* oklch */ color: oklch(48.7% 0.151 258.6);

Tailwind

colors: {
  custom: {
    50: '#7589ca',
    500: '#215cb3',
    950: '#000000',
  },
}

SCSS

$custom: #215cb3;
$custom-light: #7589ca;
$custom-dark: #000000;

JSON

{
  "hex": "#215cb3",
  "rgb": {
    "r": 33,
    "g": 92,
    "b": 179
  },
  "hsl": {
    "h": 215.753,
    "s": 68.868,
    "l": 41.569
  },
  "oklch": {
    "l": 0.4867,
    "c": 0.15118,
    "h": 258.6
  },
  "luminance": 0.11232
}

Semantic roles & 50–950 ramp

primary

#215CB3

secondary

#CAA166

accent

#A53CEC

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #215CB3

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

Preview Lab → · Contrast checker → · Palette generator →