#1881D5
Closest named color: Water Blue (#0E87CC). oklch(59.1% 0.155 249.3), rgb(24, 129, 213).
Aa
Black text reads best on this color (5.13:1).
About this color
#1881D5 is a medium-dark, vivid blue. In OKLCH its lightness is 59%, its chroma 0.155 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.024 away. Black text reads best on it, at 5.13:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.155) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 5.13:1 |
| White text | 4.08:1 |
Values
| HEX | #1881D5 |
| RGB | rgb(24, 129, 213) |
| HSL | hsl(207, 80%, 46%) |
| OKLCH | oklch(59.1% 0.155 249.3) |
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 #1881D5 | 4.08:1 | AA large text | Lc -73.0 | Content text, not long reading |
| Black text on #1881D5 | 5.13:1 | AA | Lc 36.6 | Non-text elements, placeholder text |
| #1881D5 text on white | 4.08:1 | AA large text | Lc 67.5 | Content text, not long reading |
| #1881D5 text on black | 5.13:1 | AA | Lc -34.2 | 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 600.
-
Step 50
50
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E0EBF7
oklch(93.5% 0.02 250.4)
-
Step 200
200
#C6DCF2
oklch(88.5% 0.038 248.3)
-
Step 300
300
#9EC5ED
oklch(80.9% 0.071 249.4)
-
Step 400
400
#67A6E3
oklch(70.8% 0.111 248.9)
-
Step 500
500
#388EDC
oklch(63.2% 0.143 249.4)
-
Step 600
600 (this color)
#1881D5
oklch(59.1% 0.155 249.3)
-
Step 700
700
#0063AA
oklch(49.1% 0.137 249.4)
-
Step 800
800
#00518C
oklch(42.7% 0.118 249.2)
-
Step 900
900
#0F4470
oklch(37.8% 0.092 248.7)
-
Step 950
950
#0C2842
oklch(27.1% 0.059 249.5)
#1881D5 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) | #5786D8 | 0.049 |
| Deuteranopia (no green cones) | #3976D3 | 0.031 |
| Tritanopia (no blue cones) | #0095A1 | 0.111 |
| Achromatopsia (no color) | #7E7E7E | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1881D5
#1881D5
oklch(59.1% 0.155 249.3)
- #AE6D00
#AE6D00
oklch(59.1% 0.129 69.1)
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 #1881D5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.024
- Windows Blue #3778BF ΔE 0.038
- Dark Sky Blue #448EE4 ΔE 0.051
- Cool Blue #4984B8 ΔE 0.055
- Steel Blue #4682B4 ΔE 0.057
- Nice Blue #107AB0 ΔE 0.058
- Blue NCS #118AB2 ΔE 0.065
- Clear Blue #247AFD ΔE 0.066
Use #1881D5 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.