#2887E3
Closest named color: Dark Sky Blue (#448EE4). oklch(61.6% 0.163 251.9), rgb(40, 135, 227).
Aa
Black text reads best on this color (5.66:1).
About this color
#2887E3 is a medium-dark, vivid blue. In OKLCH its lightness is 62%, its chroma 0.163 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.029 away. Black text reads best on it, at 5.66:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | vivid (0.163) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 5.66:1 |
| White text | 3.70:1 |
Values
| HEX | #2887E3 |
| RGB | rgb(40, 135, 227) |
| HSL | hsl(210, 77%, 52%) |
| OKLCH | oklch(61.6% 0.163 251.9) |
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 #2887E3 | 3.70:1 | AA large text | Lc -69.6 | Content text, not long reading |
| Black text on #2887E3 | 5.66:1 | AA | Lc 39.9 | Non-text elements, placeholder text |
| #2887E3 text on white | 3.70:1 | AA large text | Lc 64.1 | Content text, not long reading |
| #2887E3 text on black | 5.66:1 | AA | Lc -37.5 | 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
#F0F6FD
oklch(97.1% 0.011 252.1)
-
Step 100
100
#DFEBF9
oklch(93.5% 0.023 252.2)
-
Step 200
200
#C5DCF6
oklch(88.6% 0.044 251.5)
-
Step 300
300
#9BC5F3
oklch(81% 0.079 251.1)
-
Step 400
400
#62A5EE
oklch(70.8% 0.128 251.9)
-
Step 500
500 (this color)
#2887E3
oklch(61.6% 0.163 251.9)
-
Step 600
600
#0074D0
oklch(55.6% 0.166 251.9)
-
Step 700
700
#0061B0
oklch(49% 0.147 252)
-
Step 800
800
#004F92
oklch(42.6% 0.129 252.3)
-
Step 900
900
#084278
oklch(37.7% 0.107 252.4)
-
Step 950
950
#092746
oklch(26.9% 0.068 252.4)
#2887E3 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) | #598EE7 | 0.045 |
| Deuteranopia (no green cones) | #397DE1 | 0.026 |
| Tritanopia (no blue cones) | #009DAA | 0.120 |
| Achromatopsia (no color) | #858585 | 0.163 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2887E3
#2887E3
oklch(61.6% 0.163 251.9)
- #B57600
#B57600
oklch(61.7% 0.132 72.3)
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 #2887E3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.029
- Water Blue #0E87CC ΔE 0.038
- Dodger Blue #1E90FF ΔE 0.045
- Chefchaouen Blue #4895EF ΔE 0.048
- Soft Blue #6488EA ΔE 0.052
- Clear Blue #247AFD ΔE 0.055
- Windows Blue #3778BF ΔE 0.062
- Cool Blue #4984B8 ΔE 0.066
Use #2887E3 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.