#2957BA#2957BA

#2957BA is a mid, vivid blue. Relative luminance 0.108; OKLCH L 48.4% C 0.165 H 263.0°. Best body text is #FFFFFF at 6.63:1 contrast (WCAG AA passes).

Color values

HEX	#2957BA
RGB	rgb(41, 87, 186)
HSL	hsl(221, 64%, 45%)
HSV	hsv(221, 78%, 73%)
CMYK	cmyk(78%, 53.2%, 0%, 27.1%)
CIE-LAB	lab(39.30, 20.47, -56.71)
CIE-LCH	lch(39.30, 60.29, 289.85°)
OKLab	oklab(48.38% -0.0201 -0.1634)
OKLCH	oklch(48.38% 0.165 263)
XYZ	xyz(13.1824, 10.8315, 47.8408)
Luminance	0.1083 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2957BA #BA8C29

analogous

#299FBA #2957BA #4429BA

triadic

#2957BA #BA2957 #57BA29

tetradic

#2957BA #BA299F #BA8C29 #29BA44

square

#2957BA #BA299F #BA8C29 #29BA44

split-complementary

#2957BA #BA4429 #9FBA29

monochromatic

#132856 #1E4088 #2957BA #4976D7 #7B9CE2

Accessibility & contrast

On white

6.63

#2957BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#2957BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2957BA

6.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2957BA	#FFFFFF	#000000	##FFFFFF
##2957BA	1.00	6.63	3.17	6.63
#FFFFFF	6.63	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A64BD

Deuteranopia (green-blind)

#0056B8

Tritanopia (blue-blind)

#006F80

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #2957ba;
/* rgb */ color: rgb(41, 87, 186);
/* oklch */ color: oklch(48.4% 0.165 263.0);

Tailwind

colors: {
  custom: {
    50: '#7985cf',
    500: '#2957ba',
    950: '#000000',
  },
}

SCSS

$custom: #2957ba;
$custom-light: #7985cf;
$custom-dark: #000000;

JSON

{
  "hex": "#2957ba",
  "rgb": {
    "r": 41,
    "g": 87,
    "b": 186
  },
  "hsl": {
    "h": 220.966,
    "s": 63.877,
    "l": 44.51
  },
  "oklch": {
    "l": 0.48382,
    "c": 0.16466,
    "h": 263
  },
  "luminance": 0.10833
}

Semantic roles & 50–950 ramp

primary

#2957BA

secondary

#CAAF75

accent

#B241E7

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #2957BA

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

Preview Lab → · Contrast checker → · Palette generator →