#2A87D6
Closest named color: Water Blue (#0E87CC). oklch(60.9% 0.147 248.9), rgb(42, 135, 214).
Aa
Black text reads best on this color (5.53:1).
About this color
#2A87D6 is a medium-dark, vivid blue. In OKLCH its lightness is 61%, its chroma 0.147 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.020 away. Black text reads best on it, at 5.53:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.147) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 5.53:1 |
| White text | 3.79:1 |
Values
| HEX | #2A87D6 |
| RGB | rgb(42, 135, 214) |
| HSL | hsl(208, 68%, 50%) |
| OKLCH | oklch(60.9% 0.147 248.9) |
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 #2A87D6 | 3.79:1 | AA large text | Lc -70.5 | Content text, not long reading |
| Black text on #2A87D6 | 5.53:1 | AA | Lc 39.1 | Non-text elements, placeholder text |
| #2A87D6 text on white | 3.79:1 | AA large text | Lc 65.0 | Content text, not long reading |
| #2A87D6 text on black | 5.53:1 | AA | Lc -36.6 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E0EBF8
oklch(93.6% 0.021 252.5)
-
Step 200
200
#C6DCF3
oklch(88.5% 0.04 249.5)
-
Step 300
300
#9DC5EE
oklch(80.9% 0.072 249.4)
-
Step 400
400
#64A6E5
oklch(70.7% 0.115 248.7)
-
Step 500
500 (this color)
#2A87D6
oklch(60.9% 0.147 248.9)
-
Step 600
600
#0076C8
oklch(55.5% 0.154 249.2)
-
Step 700
700
#0063A9
oklch(49% 0.136 249.1)
-
Step 800
800
#00518C
oklch(42.7% 0.118 249.2)
-
Step 900
900
#0B4472
oklch(37.8% 0.096 248.8)
-
Step 950
950
#0A2842
oklch(27% 0.06 248.4)
#2A87D6 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) | #618BD9 | 0.049 |
| Deuteranopia (no green cones) | #477CD4 | 0.033 |
| Tritanopia (no blue cones) | #009AA4 | 0.107 |
| Achromatopsia (no color) | #838383 | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A87D6
#2A87D6
oklch(60.9% 0.147 248.9)
- #B57100
#B57100
oklch(60.8% 0.133 68.7)
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 #2A87D6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.020
- Dark Sky Blue #448EE4 ΔE 0.034
- Cool Blue #4984B8 ΔE 0.048
- Windows Blue #3778BF ΔE 0.048
- Steel Blue #4682B4 ΔE 0.052
- Chefchaouen Blue #4895EF ΔE 0.057
- Soft Blue #6488EA ΔE 0.060
- Blue NCS #118AB2 ΔE 0.060
Use #2A87D6 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.