#2171A5#2171A5

#2171A5 is a mid, moderate cyan. Relative luminance 0.148; OKLCH L 52.7% C 0.111 H 242.4°. Best body text is #FFFFFF at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#2171A5
RGB	rgb(33, 113, 165)
HSL	hsl(204, 67%, 39%)
HSV	hsv(204, 80%, 65%)
CMYK	cmyk(80%, 31.5%, 0%, 35.3%)
CIE-LAB	lab(45.43, -5.05, -34.60)
CIE-LCH	lch(45.43, 34.97, 261.70°)
OKLab	oklab(52.67% -0.0513 -0.0981)
OKLCH	oklch(52.67% 0.111 242.4)
XYZ	xyz(13.3212, 14.8486, 37.7540)
Luminance	0.1485 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2171A5 #A55521

analogous

#21A597 #2171A5 #212FA5

triadic

#2171A5 #A52171 #71A521

tetradic

#2171A5 #9721A5 #A55521 #2FA521

square

#2171A5 #9721A5 #A55521 #2FA521

split-complementary

#2171A5 #A5212F #A59721

monochromatic

#0D2B3F #174E72 #2171A5 #2E93D5 #61AEDF

Accessibility & contrast

On white

5.29

#2171A5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.97

#2171A5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2171A5

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2171A5	#FFFFFF	#000000	##FFFFFF
##2171A5	1.00	5.29	3.97	5.29
#FFFFFF	5.29	1.00	21.00	1.00
#000000	3.97	21.00	1.00	21.00
##FFFFFF	5.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5972A7

Deuteranopia (green-blind)

#4666A4

Tritanopia (blue-blind)

#007E83

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #2171a5;
/* rgb */ color: rgb(33, 113, 165);
/* oklch */ color: oklch(52.7% 0.111 242.4);

Tailwind

colors: {
  custom: {
    50: '#7299c0',
    500: '#2171a5',
    950: '#000000',
  },
}

SCSS

$custom: #2171a5;
$custom-light: #7299c0;
$custom-dark: #000000;

JSON

{
  "hex": "#2171a5",
  "rgb": {
    "r": 33,
    "g": 113,
    "b": 165
  },
  "hsl": {
    "h": 203.636,
    "s": 66.667,
    "l": 38.824
  },
  "oklch": {
    "l": 0.52668,
    "c": 0.11075,
    "h": 242.4
  },
  "luminance": 0.1485
}

Semantic roles & 50–950 ramp

primary

#2171A5

secondary

#C4865E

accent

#823EEA

background

#F7F9FB

surface

#EDF2F7

border

#C8CCD0

text

#090D12

muted

#7B7E81

Preview Lab

Preview with #2171A5

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

Preview Lab → · Contrast checker → · Palette generator →