#0487EF
Closest named color: Dodger Blue (#1E90FF). oklch(61.9% 0.183 251.8), rgb(4, 135, 239).
Aa
Black text reads best on this color (5.71:1).
About this color
#0487EF is a medium-dark, vivid blue. In OKLCH its lightness is 62%, its chroma 0.183 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Dodger Blue (#1E90FF), ΔE 0.034 away. Black text reads best on it, at 5.71:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | vivid (0.183) |
| Temperature | cool |
| Nearest name | Dodger Blue (#1E90FF) |
| Black text | 5.71:1 |
| White text | 3.67:1 |
Values
| HEX | #0487EF |
| RGB | rgb(4, 135, 239) |
| HSL | hsl(207, 97%, 48%) |
| OKLCH | oklch(61.9% 0.183 251.8) |
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 #0487EF | 3.67:1 | AA large text | Lc -69.0 | Content text, not long reading |
| Black text on #0487EF | 5.71:1 | AA | Lc 40.5 | Non-text elements, placeholder text |
| #0487EF text on white | 3.67:1 | AA large text | Lc 63.6 | Content text, not long reading |
| #0487EF text on black | 5.71:1 | AA | Lc -38.1 | 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
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DEEBFB
oklch(93.5% 0.026 253.6)
-
Step 200
200
#C2DCFA
oklch(88.5% 0.05 252.1)
-
Step 300
300
#96C5F9
oklch(80.9% 0.089 251.5)
-
Step 400
400
#57A4F7
oklch(70.6% 0.144 252.1)
-
Step 500
500 (this color)
#0487EF
oklch(61.9% 0.183 251.8)
-
Step 600
600
#0074D0
oklch(55.6% 0.166 251.9)
-
Step 700
700
#0061B0
oklch(49% 0.147 252)
-
Step 800
800
#005091
oklch(42.8% 0.126 251.5)
-
Step 900
900
#00427A
oklch(37.7% 0.112 251.7)
-
Step 950
950
#03274A
oklch(27% 0.076 251.9)
#0487EF 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) | #4F8FF3 | 0.047 |
| Deuteranopia (no green cones) | #1D7DED | 0.025 |
| Tritanopia (no blue cones) | #00A0AF | 0.134 |
| Achromatopsia (no color) | #858585 | 0.183 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0487EF
#0487EF
oklch(61.9% 0.183 251.8)
- #B67600
#B67600
oklch(61.8% 0.133 71.8)
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 #0487EF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dodger Blue #1E90FF ΔE 0.034
- Dark Sky Blue #448EE4 ΔE 0.041
- Clear Blue #247AFD ΔE 0.041
- Chefchaouen Blue #4895EF ΔE 0.053
- Water Blue #0E87CC ΔE 0.054
- Soft Blue #6488EA ΔE 0.060
- Cerulean Blue #056EEE ΔE 0.064
- Cornflower #6A79F7 ΔE 0.074
Use #0487EF 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.