#2751BA
Closest named color: Blue Blue (#2242C7). oklch(47.1% 0.173 264.2), rgb(39, 81, 186).
Aa
White text reads best on this color (7.06:1).
About this color
#2751BA is a medium-dark, vivid blue. In OKLCH its lightness is 47%, its chroma 0.173 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.041 away. White text reads best on it, at 7.06:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.173) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 2.97:1 |
| White text | 7.06:1 |
Values
| HEX | #2751BA |
| RGB | rgb(39, 81, 186) |
| HSL | hsl(223, 65%, 44%) |
| OKLCH | oklch(47.1% 0.173 264.2) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #2751BA | 7.06:1 | AAA | Lc -88.9 | Fine for body text |
| Black text on #2751BA | 2.97:1 | Fails | Lc 20.1 | Dividers and decoration only |
| #2751BA text on white | 7.06:1 | AAA | Lc 83.9 | Fine for body text |
| #2751BA text on black | 2.97:1 | Fails | Lc -18.0 | Dividers and decoration only |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 700.
-
Step 50
50
#F2F6FD
oklch(97.2% 0.01 261.8)
-
Step 100
100
#E2EAFB
oklch(93.6% 0.025 265.6)
-
Step 200
200
#CADAF9
oklch(88.6% 0.046 263.7)
-
Step 300
300
#A6C1F7
oklch(81% 0.082 264)
-
Step 400
400
#769EF4
oklch(70.7% 0.134 264.3)
-
Step 500
500
#5483F0
oklch(63.1% 0.171 264.5)
-
Step 600
600
#3A6ADE
oklch(55.7% 0.185 264.3)
-
Step 700
700 (this color)
#2751BA
oklch(47.1% 0.173 264.2)
-
Step 800
800
#25489C
oklch(42.7% 0.143 264.2)
-
Step 900
900
#223D7C
oklch(37.6% 0.112 264.3)
-
Step 950
950
#142449
oklch(26.9% 0.072 264.5)
#2751BA with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #0060BE | 0.039 |
| Deuteranopia (no green cones) | #0052B8 | 0.019 |
| Tritanopia (no blue cones) | #006B7D | 0.135 |
| Achromatopsia (no color) | #585858 | 0.173 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2751BA
#2751BA
oklch(47.1% 0.173 264.2)
- #745500
#745500
oklch(47% 0.096 84)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #2751BA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.041
- Majorelle Blue #3F37C9 ΔE 0.061
- Sapphire #2138AB ΔE 0.066
- Blue With A Hint Of Purple #533CC6 ΔE 0.068
- Warm Blue #4B57DB ΔE 0.069
- Mid Blue #276AB3 ΔE 0.069
- Blueberry #464196 ΔE 0.073
- Cobalt #1E488F ΔE 0.074
Use #2751BA in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.