#1585EC
Closest named color: Dodger Blue (#1E90FF). oklch(61.4% 0.18 252.7), rgb(21, 133, 236).
Aa
Black text reads best on this color (5.59:1).
About this color
#1585EC is a medium-dark, vivid blue. In OKLCH its lightness is 61%, its chroma 0.180 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Dodger Blue (#1E90FF), ΔE 0.039 away. Black text reads best on it, at 5.59:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.180) |
| Temperature | cool |
| Nearest name | Dodger Blue (#1E90FF) |
| Black text | 5.59:1 |
| White text | 3.75:1 |
Values
| HEX | #1585EC |
| RGB | rgb(21, 133, 236) |
| HSL | hsl(209, 85%, 50%) |
| OKLCH | oklch(61.4% 0.18 252.7) |
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 #1585EC | 3.75:1 | AA large text | Lc -69.9 | Content text, not long reading |
| Black text on #1585EC | 5.59:1 | AA | Lc 39.7 | Non-text elements, placeholder text |
| #1585EC text on white | 3.75:1 | AA large text | Lc 64.4 | Content text, not long reading |
| #1585EC text on black | 5.59:1 | AA | Lc -37.3 | 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
#DEEBFB
oklch(93.5% 0.026 253.6)
-
Step 200
200
#C3DCF9
oklch(88.5% 0.048 252.2)
-
Step 300
300
#98C4F9
oklch(80.8% 0.089 253.5)
-
Step 400
400
#5BA4F6
oklch(70.7% 0.141 252.8)
-
Step 500
500 (this color)
#1585EC
oklch(61.4% 0.18 252.7)
-
Step 600
600
#0073D2
oklch(55.5% 0.17 252.7)
-
Step 700
700
#0061B2
oklch(49.2% 0.149 252.5)
-
Step 800
800
#004F93
oklch(42.7% 0.13 252.6)
-
Step 900
900
#00427C
oklch(37.8% 0.114 252.4)
-
Step 950
950
#052749
oklch(27% 0.074 252.3)
#1585EC 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) | #4E8EF0 | 0.045 |
| Deuteranopia (no green cones) | #1F7BEA | 0.026 |
| Tritanopia (no blue cones) | #009EAD | 0.133 |
| Achromatopsia (no color) | #848484 | 0.180 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1585EC
#1585EC
oklch(61.4% 0.18 252.7)
- #B47600
#B47600
oklch(61.6% 0.131 72.8)
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 #1585EC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dodger Blue #1E90FF ΔE 0.039
- Clear Blue #247AFD ΔE 0.040
- Dark Sky Blue #448EE4 ΔE 0.041
- Water Blue #0E87CC ΔE 0.051
- Chefchaouen Blue #4895EF ΔE 0.056
- Soft Blue #6488EA ΔE 0.059
- Cerulean Blue #056EEE ΔE 0.061
- Royal Blue #4169E1 ΔE 0.071
Use #1585EC 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.