#2957B7#2957B7

#2957B7 is a mid, vivid blue. Relative luminance 0.107; OKLCH L 48.1% C 0.161 H 262.7°. Best body text is #FFFFFF at 6.68:1 contrast (WCAG AA passes).

Color values

HEX	#2957B7
RGB	rgb(41, 87, 183)
HSL	hsl(221, 63%, 44%)
HSV	hsv(221, 78%, 72%)
CMYK	cmyk(77.6%, 52.5%, 0%, 28.2%)
CIE-LAB	lab(39.08, 19.32, -55.30)
CIE-LCH	lch(39.08, 58.58, 289.26°)
OKLab	oklab(48.15% -0.0204 -0.1593)
OKLCH	oklch(48.15% 0.161 262.7)
XYZ	xyz(12.8668, 10.7052, 46.1788)
Luminance	0.1071 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2957B7 #B78929

analogous

#299EB7 #2957B7 #4229B7

triadic

#2957B7 #B72957 #57B729

tetradic

#2957B7 #B7299E #B78929 #29B742

square

#2957B7 #B7299E #B78929 #29B742

split-complementary

#2957B7 #B74229 #9EB729

monochromatic

#132753 #1E3F85 #2957B7 #4776D6 #799BE1

Accessibility & contrast

On white

6.68

#2957B7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#2957B7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2957B7

6.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2957B7	#FFFFFF	#000000	##FFFFFF
##2957B7	1.00	6.68	3.14	6.68
#FFFFFF	6.68	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1363BA

Deuteranopia (green-blind)

#0056B5

Tritanopia (blue-blind)

#006E7E

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #2957b7;
/* rgb */ color: rgb(41, 87, 183);
/* oklch */ color: oklch(48.1% 0.161 262.7);

Tailwind

colors: {
  custom: {
    50: '#7885cd',
    500: '#2957b7',
    950: '#000000',
  },
}

SCSS

$custom: #2957b7;
$custom-light: #7885cd;
$custom-dark: #000000;

JSON

{
  "hex": "#2957b7",
  "rgb": {
    "r": 41,
    "g": 87,
    "b": 183
  },
  "hsl": {
    "h": 220.563,
    "s": 63.393,
    "l": 43.922
  },
  "oklch": {
    "l": 0.4815,
    "c": 0.16058,
    "h": 262.7
  },
  "luminance": 0.10707
}

Semantic roles & 50–950 ramp

primary

#2957B7

secondary

#C9AD73

accent

#B141E6

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0A0B14

muted

#7C7C82

Preview Lab

Preview with #2957B7

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

Preview Lab → · Contrast checker → · Palette generator →