#2F55B4#2F55B4

#2F55B4 is a mid, vivid blue. Relative luminance 0.104; OKLCH L 47.7% C 0.157 H 264.7°. Best body text is #FFFFFF at 6.82:1 contrast (WCAG AA passes).

Color values

HEX	#2F55B4
RGB	rgb(47, 85, 180)
HSL	hsl(223, 59%, 45%)
HSV	hsv(223, 74%, 71%)
CMYK	cmyk(73.9%, 52.8%, 0%, 29.4%)
CIE-LAB	lab(38.54, 20.23, -54.39)
CIE-LCH	lch(38.54, 58.03, 290.40°)
OKLab	oklab(47.74% -0.0146 -0.1565)
OKLCH	oklch(47.74% 0.157 264.7)
XYZ	xyz(12.6561, 10.3953, 44.5106)
Luminance	0.1040 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F55B4 #B48E2F

analogous

#2F98B4 #2F55B4 #4C2FB4

triadic

#2F55B4 #B42F55 #55B42F

tetradic

#2F55B4 #B42F98 #B48E2F #2FB44C

square

#2F55B4 #B42F98 #B48E2F #2FB44C

split-complementary

#2F55B4 #B44C2F #98B42F

monochromatic

#162753 #223E83 #2F55B4 #4F74D1 #809BDE

Accessibility & contrast

On white

6.82

#2F55B4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#2F55B4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2F55B4

6.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F55B4	#FFFFFF	#000000	##FFFFFF
##2F55B4	1.00	6.82	3.08	6.82
#FFFFFF	6.82	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1361B7

Deuteranopia (green-blind)

#0055B2

Tritanopia (blue-blind)

#006C7C

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #2f55b4;
/* rgb */ color: rgb(47, 85, 180);
/* oklch */ color: oklch(47.7% 0.157 264.7);

Tailwind

colors: {
  custom: {
    50: '#7a84cb',
    500: '#2f55b4',
    950: '#000000',
  },
}

SCSS

$custom: #2f55b4;
$custom-light: #7a84cb;
$custom-dark: #000000;

JSON

{
  "hex": "#2f55b4",
  "rgb": {
    "r": 47,
    "g": 85,
    "b": 180
  },
  "hsl": {
    "h": 222.857,
    "s": 58.59,
    "l": 44.51
  },
  "oklch": {
    "l": 0.47739,
    "c": 0.15722,
    "h": 264.7
  },
  "luminance": 0.10397
}

Semantic roles & 50–950 ramp

primary

#2F55B4

secondary

#C7B078

accent

#B546E2

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #2F55B4

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

Preview Lab → · Contrast checker → · Palette generator →