#1C8CD5
Closest named color: Water Blue (#0E87CC). oklch(61.7% 0.144 244.3), rgb(28, 140, 213).
Aa
Black text reads best on this color (5.76:1).
About this color
#1C8CD5 is a medium-dark, vivid blue. In OKLCH its lightness is 62%, its chroma 0.144 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.019 away. Black text reads best on it, at 5.76:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | vivid (0.144) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 5.76:1 |
| White text | 3.64:1 |
Values
| HEX | #1C8CD5 |
| RGB | rgb(28, 140, 213) |
| HSL | hsl(204, 77%, 47%) |
| OKLCH | oklch(61.7% 0.144 244.3) |
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 #1C8CD5 | 3.64:1 | AA large text | Lc -69.0 | Content text, not long reading |
| Black text on #1C8CD5 | 5.76:1 | AA | Lc 40.6 | Non-text elements, placeholder text |
| #1C8CD5 text on white | 3.64:1 | AA large text | Lc 63.5 | Content text, not long reading |
| #1C8CD5 text on black | 5.76:1 | AA | Lc -38.2 | 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
#F0F6FB
oklch(97% 0.009 242.8)
-
Step 100
100
#DFECF7
oklch(93.7% 0.02 243.4)
-
Step 200
200
#C4DDF2
oklch(88.6% 0.039 243.5)
-
Step 300
300
#9AC6EC
oklch(80.8% 0.071 244.9)
-
Step 400
400
#5EA8E2
oklch(70.7% 0.113 244)
-
Step 500
500 (this color)
#1C8CD5
oklch(61.7% 0.144 244.3)
-
Step 600
600
#0079BD
oklch(55.5% 0.138 244.2)
-
Step 700
700
#0066A0
oklch(49.2% 0.121 244)
-
Step 800
800
#005384
oklch(42.6% 0.106 244.3)
-
Step 900
900
#00456F
oklch(37.6% 0.093 244.3)
-
Step 950
950
#062941
oklch(27% 0.059 243.6)
#1C8CD5 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) | #698FD8 | 0.061 |
| Deuteranopia (no green cones) | #4F7FD4 | 0.044 |
| Tritanopia (no blue cones) | #009EA6 | 0.101 |
| Achromatopsia (no color) | #868686 | 0.144 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1C8CD5
#1C8CD5
oklch(61.7% 0.144 244.3)
- #BE7000
#BE7000
oklch(61.8% 0.14 64.1)
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 #1C8CD5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.019
- Dark Sky Blue #448EE4 ΔE 0.034
- Cool Blue #4984B8 ΔE 0.048
- Steel Blue #4682B4 ΔE 0.054
- Chefchaouen Blue #4895EF ΔE 0.054
- Blue NCS #118AB2 ΔE 0.054
- Windows Blue #3778BF ΔE 0.058
- Dodger Blue #1E90FF ΔE 0.063
Use #1C8CD5 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.