#3081D1
Closest named color: Water Blue (#0E87CC). oklch(59.4% 0.145 251.5), rgb(48, 129, 209).
Aa
Black text reads best on this color (5.18:1).
About this color
#3081D1 is a medium-dark, vivid blue. In OKLCH its lightness is 59%, its chroma 0.145 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.023 away. Black text reads best on it, at 5.18:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.145) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 5.18:1 |
| White text | 4.04:1 |
Values
| HEX | #3081D1 |
| RGB | rgb(48, 129, 209) |
| HSL | hsl(210, 64%, 50%) |
| OKLCH | oklch(59.4% 0.145 251.5) |
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 #3081D1 | 4.04:1 | AA large text | Lc -72.8 | Content text, not long reading |
| Black text on #3081D1 | 5.18:1 | AA | Lc 36.8 | Non-text elements, placeholder text |
| #3081D1 text on white | 4.04:1 | AA large text | Lc 67.3 | Content text, not long reading |
| #3081D1 text on black | 5.18:1 | AA | Lc -34.3 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E0EBF8
oklch(93.6% 0.021 252.5)
-
Step 200
200
#C7DCF3
oklch(88.6% 0.039 250.7)
-
Step 300
300
#9FC4EE
oklch(80.8% 0.072 251.9)
-
Step 400
400
#69A5E5
oklch(70.7% 0.113 251.2)
-
Step 500
500 (this color)
#3081D1
oklch(59.4% 0.145 251.5)
-
Step 600
600
#1075CB
oklch(55.6% 0.157 251.3)
-
Step 700
700
#0062AF
oklch(49.2% 0.144 251.3)
-
Step 800
800
#07508E
oklch(42.7% 0.121 251.3)
-
Step 900
900
#134372
oklch(37.7% 0.095 251.6)
-
Step 950
950
#0D2843
oklch(27.2% 0.06 251)
#3081D1 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) | #5B86D4 | 0.042 |
| Deuteranopia (no green cones) | #4277CF | 0.028 |
| Tritanopia (no blue cones) | #00949F | 0.108 |
| Achromatopsia (no color) | #7E7E7E | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3081D1
#3081D1
oklch(59.4% 0.145 251.5)
- #AD6F00
#AD6F00
oklch(59.4% 0.128 71.1)
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 #3081D1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.023
- Windows Blue #3778BF ΔE 0.033
- Cool Blue #4984B8 ΔE 0.045
- Dark Sky Blue #448EE4 ΔE 0.047
- Steel Blue #4682B4 ΔE 0.047
- Nice Blue #107AB0 ΔE 0.057
- Blue NCS #118AB2 ΔE 0.061
- Off Blue #5684AE ΔE 0.064
Use #3081D1 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.