#2957B2#2957B2

#2957B2 is a mid, vivid blue. Relative luminance 0.105; OKLCH L 47.8% C 0.154 H 262.1°. Best body text is #FFFFFF at 6.77:1 contrast (WCAG AA passes).

Color values

HEX	#2957B2
RGB	rgb(41, 87, 178)
HSL	hsl(220, 63%, 43%)
HSV	hsv(220, 77%, 70%)
CMYK	cmyk(77%, 51.1%, 0%, 30.2%)
CIE-LAB	lab(38.73, 17.40, -52.93)
CIE-LCH	lch(38.73, 55.72, 288.19°)
OKLab	oklab(47.77% -0.021 -0.1523)
OKLCH	oklch(47.77% 0.154 262.1)
XYZ	xyz(12.3556, 10.5008, 43.4865)
Luminance	0.1050 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2957B2 #B28429

analogous

#299BB2 #2957B2 #3F29B2

triadic

#2957B2 #B22957 #57B229

tetradic

#2957B2 #B2299B #B28429 #29B23F

square

#2957B2 #B2299B #B28429 #29B23F

split-complementary

#2957B2 #B23F29 #9BB229

monochromatic

#12264F #1E3F80 #2957B2 #4474D4 #7699DF

Accessibility & contrast

On white

6.77

#2957B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#2957B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2957B2

6.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2957B2	#FFFFFF	#000000	##FFFFFF
##2957B2	1.00	6.77	3.10	6.77
#FFFFFF	6.77	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D62B5

Deuteranopia (green-blind)

#0055B0

Tritanopia (blue-blind)

#006D7C

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #2957b2;
/* rgb */ color: rgb(41, 87, 178);
/* oklch */ color: oklch(47.8% 0.154 262.1);

Tailwind

colors: {
  custom: {
    50: '#7785ca',
    500: '#2957b2',
    950: '#000000',
  },
}

SCSS

$custom: #2957b2;
$custom-light: #7785ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2957b2",
  "rgb": {
    "r": 41,
    "g": 87,
    "b": 178
  },
  "hsl": {
    "h": 219.854,
    "s": 62.557,
    "l": 42.941
  },
  "oklch": {
    "l": 0.47769,
    "c": 0.15375,
    "h": 262.1
  },
  "luminance": 0.10502
}

Semantic roles & 50–950 ramp

primary

#2957B2

secondary

#C7AA70

accent

#AF42E6

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #2957B2

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

Preview Lab → · Contrast checker → · Palette generator →