#2487D8
Closest named color: Water Blue (#0E87CC). oklch(60.9% 0.151 248.6), rgb(36, 135, 216).
Aa
Black text reads best on this color (5.53:1).
About this color
#2487D8 is a medium-dark, vivid blue. In OKLCH its lightness is 61%, its chroma 0.151 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.021 away. Black text reads best on it, at 5.53:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.151) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 5.53:1 |
| White text | 3.79:1 |
Values
| HEX | #2487D8 |
| RGB | rgb(36, 135, 216) |
| HSL | hsl(207, 71%, 49%) |
| OKLCH | oklch(60.9% 0.151 248.6) |
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 #2487D8 | 3.79:1 | AA large text | Lc -70.5 | Content text, not long reading |
| Black text on #2487D8 | 5.53:1 | AA | Lc 39.1 | Non-text elements, placeholder text |
| #2487D8 text on white | 3.79:1 | AA large text | Lc 65.0 | Content text, not long reading |
| #2487D8 text on black | 5.53:1 | AA | Lc -36.7 | 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
#DFEBF8
oklch(93.5% 0.022 250.2)
-
Step 200
200
#C5DCF4
oklch(88.5% 0.041 249.4)
-
Step 300
300
#9CC5EF
oklch(80.9% 0.074 249.4)
-
Step 400
400
#62A6E7
oklch(70.7% 0.118 248.8)
-
Step 500
500 (this color)
#2487D8
oklch(60.9% 0.151 248.6)
-
Step 600
600
#0077C7
oklch(55.7% 0.152 248.5)
-
Step 700
700
#0064A8
oklch(49.2% 0.133 248.3)
-
Step 800
800
#00518B
oklch(42.6% 0.117 248.8)
-
Step 900
900
#074473
oklch(37.8% 0.098 248.6)
-
Step 950
950
#092843
oklch(27% 0.062 248.7)
#2487D8 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) | #608CDB | 0.052 |
| Deuteranopia (no green cones) | #447CD6 | 0.033 |
| Tritanopia (no blue cones) | #009BA5 | 0.110 |
| Achromatopsia (no color) | #838383 | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2487D8
#2487D8
oklch(60.9% 0.151 248.6)
- #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 #2487D8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.021
- Dark Sky Blue #448EE4 ΔE 0.035
- Windows Blue #3778BF ΔE 0.050
- Cool Blue #4984B8 ΔE 0.051
- Steel Blue #4682B4 ΔE 0.056
- Chefchaouen Blue #4895EF ΔE 0.057
- Dodger Blue #1E90FF ΔE 0.060
- Soft Blue #6488EA ΔE 0.061
Use #2487D8 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.