#2729B3#2729B3

#2729B3 is a dark, highly saturated blue. Relative luminance 0.053; OKLCH L 39.5% C 0.208 H 271.1°. Best body text is #FFFFFF at 10.22:1 contrast (WCAG AA passes).

Color values

HEX	#2729B3
RGB	rgb(39, 41, 179)
HSL	hsl(239, 64%, 43%)
HSV	hsv(239, 78%, 70%)
CMYK	cmyk(78.2%, 77.1%, 0%, 29.8%)
CIE-LAB	lab(27.49, 46.70, -71.91)
CIE-LCH	lch(27.49, 85.74, 303.00°)
OKLab	oklab(39.49% 0.004 -0.2082)
OKLCH	oklch(39.49% 0.208 271.1)
XYZ	xyz(9.7636, 5.2708, 43.1419)
Luminance	0.0527 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2729B3 #B3B127

analogous

#276FB3 #2729B3 #6B27B3

triadic

#2729B3 #B32729 #29B327

tetradic

#2729B3 #B3276F #B3B127 #27B36B

square

#2729B3 #B3276F #B3B127 #27B36B

split-complementary

#2729B3 #B36B27 #6FB327

monochromatic

#11124E #1C1D81 #2729B3 #4144D6 #7475E1

Accessibility & contrast

On white

10.22

#2729B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#2729B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2729B3

10.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2729B3	#FFFFFF	#000000	##FFFFFF
##2729B3	1.00	10.22	2.05	10.22
#FFFFFF	10.22	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048B7

Deuteranopia (green-blind)

#003AB1

Tritanopia (blue-blind)

#00536D

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #2729b3;
/* rgb */ color: rgb(39, 41, 179);
/* oklch */ color: oklch(39.5% 0.208 271.1);

Tailwind

colors: {
  custom: {
    50: '#7a65cb',
    500: '#2729b3',
    950: '#000000',
  },
}

SCSS

$custom: #2729b3;
$custom-light: #7a65cb;
$custom-dark: #000000;

JSON

{
  "hex": "#2729b3",
  "rgb": {
    "r": 39,
    "g": 41,
    "b": 179
  },
  "hsl": {
    "h": 239.143,
    "s": 64.22,
    "l": 42.745
  },
  "oklch": {
    "l": 0.3949,
    "c": 0.20825,
    "h": 271.1
  },
  "luminance": 0.05272
}

Semantic roles & 50–950 ramp

primary

#2729B3

secondary

#C8C76E

accent

#E541E7

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #2729B3

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

Preview Lab → · Contrast checker → · Palette generator →