#187CFC
Closest named color: Clear Blue (#247AFD). oklch(60.7% 0.21 257.8), rgb(24, 124, 252).
Aa
Black text reads best on this color (5.32:1).
About this color
#187CFC is a medium-dark, vivid blue. In OKLCH its lightness is 61%, its chroma 0.210 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Clear Blue (#247AFD), ΔE 0.006 away. Black text reads best on it, at 5.32:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.210) |
| Temperature | cool |
| Nearest name | Clear Blue (#247AFD) |
| Black text | 5.32:1 |
| White text | 3.94:1 |
Values
| HEX | #187CFC |
| RGB | rgb(24, 124, 252) |
| HSL | hsl(214, 97%, 54%) |
| OKLCH | oklch(60.7% 0.21 257.8) |
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 #187CFC | 3.94:1 | AA large text | Lc -71.6 | Content text, not long reading |
| Black text on #187CFC | 5.32:1 | AA | Lc 38.0 | Non-text elements, placeholder text |
| #187CFC text on white | 3.94:1 | AA large text | Lc 66.1 | Content text, not long reading |
| #187CFC text on black | 5.32:1 | AA | Lc -35.6 | 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
#F0F6FF
oklch(97.1% 0.014 258.3)
-
Step 100
100
#DEEBFE
oklch(93.6% 0.029 257.8)
-
Step 200
200
#C2DBFF
oklch(88.5% 0.057 257.5)
-
Step 300
300
#9AC3FF
oklch(81% 0.096 257.8)
-
Step 400
400
#60A1FF
oklch(70.8% 0.154 257.7)
-
Step 500
500 (this color)
#187CFC
oklch(60.7% 0.21 257.8)
-
Step 600
600
#006CE7
oklch(55.5% 0.204 257.8)
-
Step 700
700
#005BC4
oklch(49.2% 0.18 257.7)
-
Step 800
800
#004AA2
oklch(42.7% 0.156 257.7)
-
Step 900
900
#013D88
oklch(37.6% 0.137 257.9)
-
Step 950
950
#062550
oklch(27.1% 0.087 257.8)
#187CFC 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) | #208AFF | 0.036 |
| Deuteranopia (no green cones) | #0077FA | 0.015 |
| Tritanopia (no blue cones) | #009CB0 | 0.160 |
| Achromatopsia (no color) | #808080 | 0.210 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #187CFC
#187CFC
oklch(60.7% 0.21 257.8)
- #AB7700
#AB7700
oklch(60.7% 0.126 78.2)
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 #187CFC, closest first.
No curated palette has a color within ΔE 0.04 of #187CFC.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Clear Blue #247AFD ΔE 0.006
- Cerulean Blue #056EEE ΔE 0.041
- Dodger Blue #1E90FF ΔE 0.052
- Bright Blue #0165FC ΔE 0.057
- Royal Blue #4169E1 ΔE 0.060
- Cornflower #6A79F7 ΔE 0.066
- Neon Blue #4361EE ΔE 0.066
- Dark Sky Blue #448EE4 ΔE 0.070
Use #187CFC 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.