#2F277B#2F277B

#2F277B is a dark, vivid blue. Relative luminance 0.035; OKLCH L 33.9% C 0.137 H 280.5°. Best body text is #FFFFFF at 12.37:1 contrast (WCAG AA passes).

Color values

HEX	#2F277B
RGB	rgb(47, 39, 123)
HSL	hsl(246, 52%, 32%)
HSV	hsv(246, 68%, 48%)
CMYK	cmyk(61.8%, 68.3%, 0%, 51.8%)
CIE-LAB	lab(21.89, 29.74, -46.67)
CIE-LCH	lch(21.89, 55.34, 302.51°)
OKLab	oklab(33.92% 0.025 -0.1343)
OKLCH	oklch(33.92% 0.137 280.5)
XYZ	xyz(5.4718, 3.4851, 19.1194)
Luminance	0.0348 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F277B #737B27

analogous

#27497B #2F277B #59277B

triadic

#2F277B #7B2F27 #277B2F

tetradic

#2F277B #7B2749 #737B27 #277B59

square

#2F277B #7B2749 #737B27 #277B59

split-complementary

#2F277B #7B5927 #497B27

monochromatic

#0B0A1E #1D184D #2F277B #4136A9 #5F54C9

Accessibility & contrast

On white

12.37

#2F277B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#2F277B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F277B

12.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F277B	#FFFFFF	#000000	##FFFFFF
##2F277B	1.00	12.37	1.70	12.37
#FFFFFF	12.37	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00377E

Deuteranopia (green-blind)

#003179

Tritanopia (blue-blind)

#003C4D

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #2f277b;
/* rgb */ color: rgb(47, 39, 123);
/* oklch */ color: oklch(33.9% 0.137 280.5);

Tailwind

colors: {
  custom: {
    50: '#7162a2',
    500: '#2f277b',
    950: '#000000',
  },
}

SCSS

$custom: #2f277b;
$custom-light: #7162a2;
$custom-dark: #000000;

JSON

{
  "hex": "#2f277b",
  "rgb": {
    "r": 47,
    "g": 39,
    "b": 123
  },
  "hsl": {
    "h": 245.714,
    "s": 51.852,
    "l": 31.765
  },
  "oklch": {
    "l": 0.33917,
    "c": 0.13665,
    "h": 280.5
  },
  "luminance": 0.03485
}

Semantic roles & 50–950 ramp

primary

#2F277B

secondary

#A4AD51

accent

#DB4CCE

background

#F7F5FA

surface

#EDEAF4

border

#C8C6CE

text

#08050F

muted

#7B797F

Preview Lab

Preview with #2F277B

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

Preview Lab → · Contrast checker → · Palette generator →