#2957B9#2957B9

#2957B9 is a mid, vivid blue. Relative luminance 0.108; OKLCH L 48.3% C 0.163 H 262.9°. Best body text is #FFFFFF at 6.65:1 contrast (WCAG AA passes).

Color values

HEX	#2957B9
RGB	rgb(41, 87, 185)
HSL	hsl(221, 64%, 44%)
HSV	hsv(221, 78%, 73%)
CMYK	cmyk(77.8%, 53%, 0%, 27.5%)
CIE-LAB	lab(39.22, 20.09, -56.24)
CIE-LCH	lch(39.22, 59.72, 289.66°)
OKLab	oklab(48.31% -0.0202 -0.162)
OKLCH	oklch(48.31% 0.163 262.9)
XYZ	xyz(13.0765, 10.7891, 47.2829)
Luminance	0.1079 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2957B9 #B98B29

analogous

#299FB9 #2957B9 #4329B9

triadic

#2957B9 #B92957 #57B929

tetradic

#2957B9 #B9299F #B98B29 #29B943

square

#2957B9 #B9299F #B98B29 #29B943

split-complementary

#2957B9 #B94329 #9FB929

monochromatic

#132855 #1E3F87 #2957B9 #4976D7 #7B9CE2

Accessibility & contrast

On white

6.65

#2957B9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#2957B9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2957B9

6.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2957B9	#FFFFFF	#000000	##FFFFFF
##2957B9	1.00	6.65	3.16	6.65
#FFFFFF	6.65	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E63BC

Deuteranopia (green-blind)

#0056B7

Tritanopia (blue-blind)

#006F7F

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #2957b9;
/* rgb */ color: rgb(41, 87, 185);
/* oklch */ color: oklch(48.3% 0.163 262.9);

Tailwind

colors: {
  custom: {
    50: '#7985cf',
    500: '#2957b9',
    950: '#000000',
  },
}

SCSS

$custom: #2957b9;
$custom-light: #7985cf;
$custom-dark: #000000;

JSON

{
  "hex": "#2957b9",
  "rgb": {
    "r": 41,
    "g": 87,
    "b": 185
  },
  "hsl": {
    "h": 220.833,
    "s": 63.717,
    "l": 44.314
  },
  "oklch": {
    "l": 0.48305,
    "c": 0.1633,
    "h": 262.9
  },
  "luminance": 0.10791
}

Semantic roles & 50–950 ramp

primary

#2957B9

secondary

#CAAE74

accent

#B241E7

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0A0B14

muted

#7C7C82

Preview Lab

Preview with #2957B9

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

Preview Lab → · Contrast checker → · Palette generator →