#2F55B3#2F55B3

#2F55B3 is a mid, vivid blue. Relative luminance 0.104; OKLCH L 47.7% C 0.156 H 264.6°. Best body text is #FFFFFF at 6.84:1 contrast (WCAG AA passes).

Color values

HEX	#2F55B3
RGB	rgb(47, 85, 179)
HSL	hsl(223, 58%, 44%)
HSV	hsv(223, 74%, 70%)
CMYK	cmyk(73.7%, 52.5%, 0%, 29.8%)
CIE-LAB	lab(38.47, 19.85, -53.92)
CIE-LCH	lch(38.47, 57.46, 290.21°)
OKLab	oklab(47.66% -0.0147 -0.1551)
OKLCH	oklch(47.66% 0.156 264.6)
XYZ	xyz(12.5546, 10.3547, 43.9761)
Luminance	0.1036 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F55B3 #B38D2F

analogous

#2F97B3 #2F55B3 #4B2FB3

triadic

#2F55B3 #B32F55 #55B32F

tetradic

#2F55B3 #B32F97 #B38D2F #2FB34B

square

#2F55B3 #B32F97 #B38D2F #2FB34B

split-complementary

#2F55B3 #B34B2F #97B32F

monochromatic

#162752 #223E83 #2F55B3 #4F74D1 #7F9ADD

Accessibility & contrast

On white

6.84

#2F55B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.07

#2F55B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2F55B3

6.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F55B3	#FFFFFF	#000000	##FFFFFF
##2F55B3	1.00	6.84	3.07	6.84
#FFFFFF	6.84	1.00	21.00	1.00
#000000	3.07	21.00	1.00	21.00
##FFFFFF	6.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1561B6

Deuteranopia (green-blind)

#0055B1

Tritanopia (blue-blind)

#006C7C

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #2f55b3;
/* rgb */ color: rgb(47, 85, 179);
/* oklch */ color: oklch(47.7% 0.156 264.6);

Tailwind

colors: {
  custom: {
    50: '#7a84ca',
    500: '#2f55b3',
    950: '#000000',
  },
}

SCSS

$custom: #2f55b3;
$custom-light: #7a84ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2f55b3",
  "rgb": {
    "r": 47,
    "g": 85,
    "b": 179
  },
  "hsl": {
    "h": 222.727,
    "s": 58.407,
    "l": 44.314
  },
  "oklch": {
    "l": 0.47662,
    "c": 0.15584,
    "h": 264.6
  },
  "luminance": 0.10356
}

Semantic roles & 50–950 ramp

primary

#2F55B3

secondary

#C6B078

accent

#B546E2

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #2F55B3

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

Preview Lab → · Contrast checker → · Palette generator →