#2586E1
Closest named color: Dark Sky Blue (#448EE4). oklch(61.2% 0.163 251.5), rgb(37, 134, 225).
Aa
Black text reads best on this color (5.57:1).
About this color
#2586E1 is a medium-dark, vivid blue. In OKLCH its lightness is 61%, 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 0.032 away. Black text reads best on it, at 5.57:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.163) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 5.57:1 |
| White text | 3.76:1 |
Values
| HEX | #2586E1 |
| RGB | rgb(37, 134, 225) |
| HSL | hsl(209, 76%, 51%) |
| OKLCH | oklch(61.2% 0.163 251.5) |
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 #2586E1 | 3.76:1 | AA large text | Lc -70.2 | Content text, not long reading |
| Black text on #2586E1 | 5.57:1 | AA | Lc 39.4 | Non-text elements, placeholder text |
| #2586E1 text on white | 3.76:1 | AA large text | Lc 64.7 | Content text, not long reading |
| #2586E1 text on black | 5.57:1 | AA | Lc -37.0 | 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
#61A5ED
oklch(70.7% 0.127 251.3)
-
Step 500
500 (this color)
#2586E1
oklch(61.2% 0.163 251.5)
-
Step 600
600
#0074CF
oklch(55.5% 0.165 251.7)
-
Step 700
700
#0062AF
oklch(49.2% 0.144 251.3)
-
Step 800
800
#005091
oklch(42.8% 0.126 251.5)
-
Step 900
900
#074277
oklch(37.6% 0.106 251.8)
-
Step 950
950
#082746
oklch(26.9% 0.068 251.9)
#2586E1 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) | #598CE5 | 0.045 |
| Deuteranopia (no green cones) | #397CDF | 0.027 |
| Tritanopia (no blue cones) | #009CA8 | 0.121 |
| Achromatopsia (no color) | #838383 | 0.163 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2586E1
#2586E1
oklch(61.2% 0.163 251.5)
- #B47400
#B47400
oklch(61.2% 0.132 71.3)
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 #2586E1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.032
- Water Blue #0E87CC ΔE 0.035
- Dodger Blue #1E90FF ΔE 0.049
- Chefchaouen Blue #4895EF ΔE 0.052
- Soft Blue #6488EA ΔE 0.055
- Clear Blue #247AFD ΔE 0.055
- Windows Blue #3778BF ΔE 0.058
- Cool Blue #4984B8 ΔE 0.064
Use #2586E1 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.