#276DB3#276DB3

#276DB3 is a mid, vivid cyan. Relative luminance 0.146; OKLCH L 52.7% C 0.130 H 251.8°. Best body text is #FFFFFF at 5.35:1 contrast (WCAG AA passes).

Color values

HEX	#276DB3
RGB	rgb(39, 109, 179)
HSL	hsl(210, 64%, 43%)
HSV	hsv(210, 78%, 70%)
CMYK	cmyk(78.2%, 39.1%, 0%, 29.8%)
CIE-LAB	lab(45.11, 3.38, -43.28)
CIE-LCH	lch(45.11, 43.41, 274.46°)
OKLab	oklab(52.71% -0.0407 -0.1235)
OKLCH	oklch(52.71% 0.13 251.8)
XYZ	xyz(14.4390, 14.6216, 44.7003)
Luminance	0.1462 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#276DB3 #B36D27

analogous

#27B3B3 #276DB3 #2727B3

triadic

#276DB3 #B3276D #6DB327

tetradic

#276DB3 #B327B3 #B36D27 #27B327

square

#276DB3 #B327B3 #B36D27 #27B327

split-complementary

#276DB3 #B32727 #B3B327

monochromatic

#11304E #1C4E81 #276DB3 #418CD6 #74AAE1

Accessibility & contrast

On white

5.35

#276DB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.92

#276DB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #276DB3

5.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##276DB3	#FFFFFF	#000000	##FFFFFF
##276DB3	1.00	5.35	3.92	5.35
#FFFFFF	5.35	1.00	21.00	1.00
#000000	3.92	21.00	1.00	21.00
##FFFFFF	5.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C72B6

Deuteranopia (green-blind)

#3665B2

Tritanopia (blue-blind)

#007E87

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #276db3;
/* rgb */ color: rgb(39, 109, 179);
/* oklch */ color: oklch(52.7% 0.130 251.8);

Tailwind

colors: {
  custom: {
    50: '#7696ca',
    500: '#276db3',
    950: '#000000',
  },
}

SCSS

$custom: #276db3;
$custom-light: #7696ca;
$custom-dark: #000000;

JSON

{
  "hex": "#276db3",
  "rgb": {
    "r": 39,
    "g": 109,
    "b": 179
  },
  "hsl": {
    "h": 210,
    "s": 64.22,
    "l": 42.745
  },
  "oklch": {
    "l": 0.52707,
    "c": 0.13006,
    "h": 251.8
  },
  "luminance": 0.14623
}

Semantic roles & 50–950 ramp

primary

#276DB3

secondary

#C89B6E

accent

#9441E7

background

#F7F9FC

surface

#EEF1F8

border

#C9CBD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #276DB3

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

Preview Lab → · Contrast checker → · Palette generator →