#027FD8
Closest named color: Water Blue (#0E87CC). oklch(58.6% 0.164 249.6), rgb(2, 127, 216).
Aa
Black text reads best on this color (5.02:1).
About this color
#027FD8 is a medium-dark, vivid blue. In OKLCH its lightness is 59%, its chroma 0.164 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.032 away. Black text reads best on it, at 5.02:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.164) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 5.02:1 |
| White text | 4.17:1 |
Values
| HEX | #027FD8 |
| RGB | rgb(2, 127, 216) |
| HSL | hsl(205, 98%, 43%) |
| OKLCH | oklch(58.6% 0.164 249.6) |
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 #027FD8 | 4.17:1 | AA large text | Lc -73.5 | Content text, not long reading |
| Black text on #027FD8 | 5.02:1 | AA | Lc 36.0 | Non-text elements, placeholder text |
| #027FD8 text on white | 4.17:1 | AA large text | Lc 68.0 | Content text, not long reading |
| #027FD8 text on black | 5.02:1 | AA | Lc -33.6 | 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 600.
-
Step 50
50
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#DFEBF8
oklch(93.5% 0.022 250.2)
-
Step 200
200
#C5DCF4
oklch(88.5% 0.041 249.4)
-
Step 300
300
#9CC5EF
oklch(80.9% 0.074 249.4)
-
Step 400
400
#64A6E7
oklch(70.8% 0.117 249.5)
-
Step 500
500
#318DE0
oklch(63% 0.151 249.8)
-
Step 600
600 (this color)
#027FD8
oklch(58.6% 0.164 249.6)
-
Step 700
700
#0063AB
oklch(49.2% 0.138 249.7)
-
Step 800
800
#00518D
oklch(42.7% 0.12 249.5)
-
Step 900
900
#0A4373
oklch(37.6% 0.099 249.9)
-
Step 950
950
#0A2843
oklch(27% 0.061 249.3)
#027FD8 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) | #5185DC | 0.049 |
| Deuteranopia (no green cones) | #2D74D6 | 0.030 |
| Tritanopia (no blue cones) | #0095A1 | 0.119 |
| Achromatopsia (no color) | #7C7C7C | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #027FD8
#027FD8
oklch(58.6% 0.164 249.6)
- #AC6C00
#AC6C00
oklch(58.7% 0.128 69.4)
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 #027FD8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.032
- Windows Blue #3778BF ΔE 0.042
- Dark Sky Blue #448EE4 ΔE 0.057
- Cerulean Blue #056EEE ΔE 0.058
- Clear Blue #247AFD ΔE 0.060
- Nice Blue #107AB0 ΔE 0.061
- Royal Blue #4169E1 ΔE 0.063
- Cool Blue #4984B8 ΔE 0.064
Use #027FD8 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.