#1286E3
Closest named color: Water Blue (#0E87CC). oklch(61.1% 0.168 250.3), rgb(18, 134, 227).
Aa
Black text reads best on this color (5.54:1).
About this color
#1286E3 is a medium-dark, vivid blue. In OKLCH its lightness is 61%, its chroma 0.168 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.036 away. Black text reads best on it, at 5.54:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.168) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 5.54:1 |
| White text | 3.78:1 |
Values
| HEX | #1286E3 |
| RGB | rgb(18, 134, 227) |
| HSL | hsl(207, 85%, 48%) |
| OKLCH | oklch(61.1% 0.168 250.3) |
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 #1286E3 | 3.78:1 | AA large text | Lc -70.3 | Content text, not long reading |
| Black text on #1286E3 | 5.54:1 | AA | Lc 39.3 | Non-text elements, placeholder text |
| #1286E3 text on white | 3.78:1 | AA large text | Lc 64.8 | Content text, not long reading |
| #1286E3 text on black | 5.54:1 | AA | Lc -36.9 | 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
#DEEBFA
oklch(93.5% 0.025 251.9)
-
Step 200
200
#C3DCF7
oklch(88.5% 0.046 250.4)
-
Step 300
300
#98C5F4
oklch(80.8% 0.082 250)
-
Step 400
400
#5CA5EF
oklch(70.6% 0.131 250.5)
-
Step 500
500 (this color)
#1286E3
oklch(61.1% 0.168 250.3)
-
Step 600
600
#0075CB
oklch(55.5% 0.159 250.4)
-
Step 700
700
#0063AC
oklch(49.2% 0.139 250)
-
Step 800
800
#00508E
oklch(42.6% 0.122 250.5)
-
Step 900
900
#004378
oklch(37.8% 0.108 250.3)
-
Step 950
950
#052847
oklch(27.2% 0.069 249.8)
#1286E3 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) | #578DE7 | 0.051 |
| Deuteranopia (no green cones) | #327BE1 | 0.029 |
| Tritanopia (no blue cones) | #009DA9 | 0.123 |
| Achromatopsia (no color) | #838383 | 0.168 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1286E3
#1286E3
oklch(61.1% 0.168 250.3)
- #B57300
#B57300
oklch(61.1% 0.132 70.1)
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 #1286E3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.036
- Dark Sky Blue #448EE4 ΔE 0.037
- Dodger Blue #1E90FF ΔE 0.048
- Clear Blue #247AFD ΔE 0.053
- Chefchaouen Blue #4895EF ΔE 0.056
- Soft Blue #6488EA ΔE 0.061
- Windows Blue #3778BF ΔE 0.061
- Cerulean Blue #056EEE ΔE 0.067
Use #1286E3 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.