#3127B3#3127B3

#3127B3 is a dark, highly saturated blue. Relative luminance 0.054; OKLCH L 39.8% C 0.207 H 274.6°. Best body text is #FFFFFF at 10.14:1 contrast (WCAG AA passes).

Color values

HEX	#3127B3
RGB	rgb(49, 39, 179)
HSL	hsl(244, 64%, 43%)
HSV	hsv(244, 78%, 70%)
CMYK	cmyk(72.6%, 78.2%, 0%, 29.8%)
CIE-LAB	lab(27.73, 48.54, -71.50)
CIE-LCH	lch(27.73, 86.41, 304.17°)
OKLab	oklab(39.82% 0.0167 -0.2068)
OKLCH	oklch(39.82% 0.207 274.6)
XYZ	xyz(10.1261, 5.3577, 43.1396)
Luminance	0.0536 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3127B3 #A9B327

analogous

#2763B3 #3127B3 #7727B3

triadic

#3127B3 #B33127 #27B331

tetradic

#3127B3 #B32763 #A9B327 #27B377

square

#3127B3 #B32763 #A9B327 #27B377

split-complementary

#3127B3 #B37727 #63B327

monochromatic

#15114E #231C81 #3127B3 #4C41D6 #7C74E1

Accessibility & contrast

On white

10.14

#3127B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#3127B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3127B3

10.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3127B3	#FFFFFF	#000000	##FFFFFF
##3127B3	1.00	10.14	2.07	10.14
#FFFFFF	10.14	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048B7

Deuteranopia (green-blind)

#003BB1

Tritanopia (blue-blind)

#00516C

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #3127b3;
/* rgb */ color: rgb(49, 39, 179);
/* oklch */ color: oklch(39.8% 0.207 274.6);

Tailwind

colors: {
  custom: {
    50: '#7e64cb',
    500: '#3127b3',
    950: '#000000',
  },
}

SCSS

$custom: #3127b3;
$custom-light: #7e64cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3127b3",
  "rgb": {
    "r": 49,
    "g": 39,
    "b": 179
  },
  "hsl": {
    "h": 244.286,
    "s": 64.22,
    "l": 42.745
  },
  "oklch": {
    "l": 0.39819,
    "c": 0.20746,
    "h": 274.6
  },
  "luminance": 0.05359
}

Semantic roles & 50–950 ramp

primary

#3127B3

secondary

#C1C86E

accent

#E741DB

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0613

muted

#7D7A82

Preview Lab

Preview with #3127B3

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

Preview Lab → · Contrast checker → · Palette generator →