#0E66B8
Closest named color: Mid Blue (#276AB3). oklch(50.9% 0.15 252.9), rgb(14, 102, 184).
Aa
White text reads best on this color (5.81:1).
About this color
#0E66B8 is a medium-dark, vivid blue. In OKLCH its lightness is 51%, its chroma 0.150 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.020 away. White text reads best on it, at 5.81:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.150) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.61:1 |
| White text | 5.81:1 |
Values
| HEX | #0E66B8 |
| RGB | rgb(14, 102, 184) |
| HSL | hsl(209, 86%, 39%) |
| OKLCH | oklch(50.9% 0.15 252.9) |
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 #0E66B8 | 5.81:1 | AA | Lc -83.7 | Fine for body text |
| Black text on #0E66B8 | 3.61:1 | AA large text | Lc 25.6 | Dividers and decoration only |
| #0E66B8 text on white | 5.81:1 | AA | Lc 78.5 | Fine for body text |
| #0E66B8 text on black | 3.61:1 | AA large text | Lc -23.3 | Dividers and decoration only |
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 700.
-
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
#C7DBF4
oklch(88.4% 0.041 254)
-
Step 300
300
#A0C4EF
oklch(80.9% 0.072 253.1)
-
Step 400
400
#6AA4E7
oklch(70.7% 0.116 252.9)
-
Step 500
500
#3E8CE0
oklch(63.2% 0.148 252.7)
-
Step 600
600
#1674CE
oklch(55.7% 0.161 252.9)
-
Step 700
700 (this color)
#0E66B8
oklch(50.9% 0.15 252.9)
-
Step 800
800
#0B4F90
oklch(42.6% 0.124 253)
-
Step 900
900
#144273
oklch(37.6% 0.097 253.1)
-
Step 950
950
#0E2743
oklch(26.9% 0.061 253.2)
#0E66B8 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) | #3A6DBB | 0.037 |
| Deuteranopia (no green cones) | #135FB6 | 0.019 |
| Tritanopia (no blue cones) | #007A86 | 0.111 |
| Achromatopsia (no color) | #656565 | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0E66B8
#0E66B8
oklch(50.9% 0.15 252.9)
- #8B5A00
#8B5A00
oklch(50.9% 0.109 72.7)
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 #0E66B8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.020
- French Blue #436BAD ΔE 0.045
- Peacock Blue #016795 ΔE 0.058
- Flat Blue #3C73A8 ΔE 0.059
- Windows Blue #3778BF ΔE 0.060
- Ocean Blue #03719C ΔE 0.060
- Nice Blue #107AB0 ΔE 0.061
- Muted Blue #3B719F ΔE 0.063
Use #0E66B8 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.