#2563AA#2563AA

#2563AA is a mid, vivid cyan. Relative luminance 0.122; OKLCH L 49.8% C 0.130 H 254.3°. Best body text is #FFFFFF at 6.10:1 contrast (WCAG AA passes).

Color values

HEX	#2563AA
RGB	rgb(37, 99, 170)
HSL	hsl(212, 64%, 41%)
HSV	hsv(212, 78%, 67%)
CMYK	cmyk(78.2%, 41.8%, 0%, 33.3%)
CIE-LAB	lab(41.56, 6.01, -43.67)
CIE-LCH	lch(41.56, 44.08, 277.84°)
OKLab	oklab(49.75% -0.0351 -0.1249)
OKLCH	oklch(49.75% 0.13 254.3)
XYZ	xyz(12.4778, 12.2178, 39.7231)
Luminance	0.1222 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2563AA #AA6C25

analogous

#25A5AA #2563AA #2925AA

triadic

#2563AA #AA2563 #63AA25

tetradic

#2563AA #AA25A5 #AA6C25 #25AA29

square

#2563AA #AA25A5 #AA6C25 #25AA29

split-complementary

#2563AA #AA2925 #A5AA25

monochromatic

#0F2845 #1A4678 #2563AA #3881D4 #6BA1DF

Accessibility & contrast

On white

6.10

#2563AA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.44

#2563AA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2563AA

6.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2563AA	#FFFFFF	#000000	##FFFFFF
##2563AA	1.00	6.10	3.44	6.10
#FFFFFF	6.10	1.00	21.00	1.00
#000000	3.44	21.00	1.00	21.00
##FFFFFF	6.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4069AD

Deuteranopia (green-blind)

#295CA9

Tritanopia (blue-blind)

#00747E

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #2563aa;
/* rgb */ color: rgb(37, 99, 170);
/* oklch */ color: oklch(49.8% 0.130 254.3);

Tailwind

colors: {
  custom: {
    50: '#748ec4',
    500: '#2563aa',
    950: '#000000',
  },
}

SCSS

$custom: #2563aa;
$custom-light: #748ec4;
$custom-dark: #000000;

JSON

{
  "hex": "#2563aa",
  "rgb": {
    "r": 37,
    "g": 99,
    "b": 170
  },
  "hsl": {
    "h": 212.03,
    "s": 64.251,
    "l": 40.588
  },
  "oklch": {
    "l": 0.49751,
    "c": 0.12971,
    "h": 254.3
  },
  "luminance": 0.12219
}

Semantic roles & 50–950 ramp

primary

#2563AA

secondary

#C59966

accent

#9A41E7

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#090C12

muted

#7B7D81

Preview Lab

Preview with #2563AA

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

Preview Lab → · Contrast checker → · Palette generator →